How Long Does Pet Dander Stay In a House?

How Long Does Pet Dander Stay In a House

How Long Can Pet Dander Stay In a House?

Pet dander will typically stay in a house for 4–6 months or 20 to 30 weeks even after the pet is no longer present. This is according to different researches and allergists. Generally, cat dander is more adhesive than dog dander as it is easily airborne. You will regularly find pet dander stuck on hair, bag, clothes, sofa, carpet, bed, floors and even wall. If the dander is stuck on a person, any movement or action will cause the allergen to spread to other locations. Because of this, pet dander can be found in malls, offices, schools, nursery rooms, or restaurants even though pets are not allowed in the premise. We highly recommend home buyers with hyperallergic to avoid purchasing a unit that has housed a pet for the past 6 months.

6 Common Pet Dander Allergy Symptoms

  • Constant sneezing, Nasal congestion
  • Postnasal drip cough, Wheezing
  • Swollen eyes, Red eyes
  • Rashness, Eczema
  • Difficulty breathing, Shortness of breath
  • Chest tightness

Do Air Purifiers Help with Asthma

Do Air Purifiers Help with Asthma

Will An Air Purifier Help With Asthma

A HEPA air purifier will help you breathe better by alleviating asthma signs through indoor allergens removal. Common triggers include dust, pollen, mold, mildew, pet dander, dust mite, bacteria, and viruses. If the air purifier comes with a carbon filter, it will also remove smoke and odors from cooking, mold, or cigarette. Speaking of cigarette smoke, secondhand smoke is notoriously known to worsen asthma conditions. An air purifier will curb asthma symptoms by taking in all the toxic fumes emitted from the tobacco smoke. A must-have if you are a smoker, living with a smoker or have children with or without asthma.

However, there is only so much what an air purifier could do. First, an air purifier would need to be running 24×7 in the background to ensure no particles will escape. If a particular irritant is not airborne like microscopic feces from a pillow or germs on your cellphone, that is beyond the realm of an air cleaner. Also if the irritants are not within an air purifier coverage e.g. dust mites settled in a carpet, it can only be captured once it is stirred into the air.

What Types Of Air Purifiers Are Best For Asthma

There are many types of air purifiers in the market from Odor Eliminator, UVGI cleaner, Ion generator, and Electronic air cleaner. The most popular types for asthma is definitely a HEPA air purifier. HEPA is a type of mechanical filter that traps airborne contaminants as small as 0.3 microns with 99.97% efficiency. It is highly effective, has no side effects, and relatively cheap and easy to find. Some models even come with extra filtration like a carbon filter, ionizer or UV-light. You only need to place the air purifier in a room and leave it running autonomously in the background.

What Is The Best Air Purifier For Asthma?

Air purifiers have proven again and again to be effective in managing the symptoms of asthma. But not all air purifiers would do an identical job. Some are particularly good at certain types of allergens, some have wide purifying coverage, some are just dirt cheap. Without further ado, here is our best asthma air purifier of the bunch.

  1. IQAir HealthPro Plus
  2. Airmega 300
  3. Coway Mighty
  4. Honeywell HPA300
  5. Austin Air Allergy Machine
  6. Winix 5500-2
  7. Rabbit Air MinusA2

There is no cure for asthma. As many people are born with asthma and suffer for their entire lives, an air purifier will be the next best thing. Find out more about our best air purifier for asthma and allergies here.

How Long To Run Ozone Generator? How Long Does Ozone Last in Air?

How Long To Run Ozone Generator? How Long Does Ozone Last in Air?

What Is Ozone?

Ozone (O3) AKA activated oxygen is a natural gas produced by UV light from the Sun. Ozone contains three oxygen atoms rather than the two atoms in oxygen (O2). In the atmosphere, ozone layer acts as a shield to reduce the sun’s ultraviolet rays intensity. The pungent and colorless gas occurs naturally, often as a result of lightning strikes during a thunderstorm. At ground level, ozone is an air pollutant that will trigger chemical reactions with other particulates. it is the second most powerful sterilant in the world used to destroy mold, bacteria, viruses, and odors

How Long To Run Ozone Generator In A Room?

Generally, the ozone generator should be running for at least 3 to 10 hours depending on the room size. For an entire home, at least 25-30 hours of continuous operation to kill off most pollutants. Avoid staying in the room or find a place to stay while an ozone generator is still active.

How Long Does It Take For Ozone To Dissipate?

Ozone will last between 30 minutes to 4 hours for the third oxygen atom to breaks apart and reverts back into oxygen. On a lower concentration level, it will typically take 30 minutes to 1-2 hours for ozone to breaks down into breathable oxygen. On a higher concentration level, it will take 3-4 hours for the ozone to break down into normal oxygen. To be on the safe side, wait at least 4 hours only to return back to the room after shutting off an ozone generator. Room size, temperature, dust, and contaminants will play a part in ozone dispersion in the air.

Are Air Purifiers Safe for Babies and Newborns?

Are Air Purifiers Safe for Babies and Newborns

What Are The Benefits of Air Purifier for Baby?

The main benefit of having an air purifier for babies is it can remove all harmful pollutants in the air. Our indoor home is filled with biological contaminants, germs, and toxic gases that are often hidden from our sight. These allergens are often hidden in the rugs, ceiling or wall that will become airborne when disturbed. A good baby air purifier will capture all of those including:

  • Dust, Hair
  • Dust mites
  • Pollen
  • Pet dander
  • Mold spores
  • Bacteria, Viruses
  • Volatile Organic Compounds
  • Cigarette smoke
  • Odor and fumes
  • Chemical (VOCs, CO, CO2, NO2, Radon, Lead, Asbestos, Formaldehyde)

When your newborn and baby only breathe in healthy air, they will cry less because there is no discomfort. They will also experience fewer allergy symptoms like sneezing or breathing difficulty. More importantly, it will ensure a healthy body development growth. The babies would be at lesser risk of developing respiratory diseases like bronchitis and asthma. They will be at even lower risk of experiencing nervous system damage, organ failure, eczema, and cancer.

Babies have a faster breathing pattern than an adult. This is because they have much smaller breathing pathways. Baby’s lungs are still underdeveloped and their chest wall is more pliable. They are still not used to breathing with lungs and the associated breathing muscles.

A newborn will breathes 30-60 times a minute or slow down to 20 times per minute during their sleep. A 6 months babies will breathe about 25 to 40 times per minute. For comparison, an adult will take about 12 to 20 breaths per minute.

If you notice your baby has breathing irregularities after 6 months, this could be due to allergies like a common cold. An air purifier would be able to alleviate the symptoms.

Avoid Ozone Generator!

Remember the name, Ozone generator and Ozonator. They are the so-called “air purifier” that is bad for the baby. In fact, some models might not even use the ozone name due to the bad press. Instead, they often mask it as an ionizer or air cleaner so beware of that.

The reason why ozone generator is harmful to babies us because the device will emit millions of ozone gas. In theory, the ozone gas is supposed to disinfect microorganisms but in reality, it will destroy your tissue cells. Babies and newborns will suffer the most due to developing organs, especially on their lungs. Ozone will also take a couple of hours to dissipate in a home and it can spread from room to room. All Ozone generator is unregulated. If you are unsure if a particular air purifier is an Ozonator, check with the manufacturer.

Are Air Purifiers Safe For Newborns And Babies?

A HEPA air purifier that uses a mechanical filter is safe for babies. HEPA existed since 1940 and is been used in hospitals, nursery homes, and childcare centers. Its sole function is to pull in all the airborne contaminants into its filtration and release back only clean air.

Not all air purifiers are created equal. Some models having an inferior filtration but with a cheaper price tag, while some do the complete opposite. There are also the fake air purifiers out there that we will talk more about it later. To get the best out of HEPA air purifier baby, we will be looking into the 3 following features.

  • True HEPA filter
  • Carbon filter
  • Noise level

Let’s start with the main filtration. A True HEPA filter is capable of capturing particles as small as 0.3 microns with 99.97% efficiency. Very important as mold, pet dander, dust mites, bacteria, and viruses are all microscopic particles that can only be dealt with a HEPA filter. You do not want the babies or newborn inhaling to those germs. As for carbon filter, it’s absorption materials will take in all smoke and odor particles. This includes chemicals like VOCs, Asbestos, CO2, CO, and even radon on older homes. Lastly, the noise level also plays a big role here as some air purifiers can be unusually loud. We will pick an air purifier that is silent enough to run all night without disturbing the baby’s sleep.

In short, if the air purifier checks all 3 requirements, it will be a good baby air purifier. A happy baby equals a happy family.

Does Cold Air Kill Germs? What About Heat?

Does Cold Air Kill Germs? What About Heat?

Does Cold Air Kill Germs?

It may, but the air must be below freezing cold to kill the germs. The membranes inside the germs will break and causes it to dry off or die. The main problem is most bacteria and viruses already found their way on a host with a warm body. Our human body will provide the right temperature and nutrients for the germ to survive thus the outer cold weather does not make a big difference.

Does Heat Kill Germs?

Most germs can be killed through heat 165º F or higher so UV-light or sterilizer will work. For food-related bacteria, cooking will do the trick. You can either boil them with hot water, pasteurize or bake them with an oven. The higher the temperature, the faster the germs will be killed. Most canned food is prepared at high-temperature to ensure no germs are left in the can. There are extremophiles that can survive in extreme temperatures and conditions. Those are the rare few that we don’t encounter very often.

Why Do We Get Colds In Winter?

The reason why we always get colds and flu in winter is because of the lack of outdoor activities. We will spend more time indoor with poor air circulation surrounded by people that may be sick. For instance, shopping mall, cinema, cafes, train station will be packed with people. Germs are often passed from a person to person through cough, sneeze, or simple gestures like shaking hand, hugging. You will likely catch a cold through direct contact with a fresh airborne virus.

Another reason why colds and flu are more prevalent in winter is the lack of natural sunlight. Sunshine can kill bacteria and viruses according to many studies. As the density of airborne germs is less, our exposure rate to the microorganisms would also decrease. Bacteria and viruses tend to live longer indoors during winter as the air is less humid than outside.

From the doctor perspective, the body immune system tends to wear down in cold weather as we are running low on vitamin D (sunlight). As we breathe in cold air, our blood vessels will thicken to help retain our body heat. This causes the white blood cells to ignore the harmful viruses and we end up with bad flu like influenza.

What Temperature Kills Germs In The House

Most germs will die from 165 degrees F to 250 degrees F (121°C) within a couple of minutes. That’s the recommended temperature from food scientists to heat up meat, fish, pork before serving. Some viruses can be killed at temperatures lower than 140 degrees F (hot water). For dry heat sterilization, switch the temperature to 320 degrees F (160°C) for 2 hours or 338 degrees F (170°C) for 1 hour.

In short, hot water does not necessarily kill germs but boiling water does. The higher and longer the germs are under extreme temperature, the faster and more germs will die.

How To Avoid Getting Sick In Winter

Germs love the indoor as it is the best place for the flu to spread. So to prevent flu from spreading too much love, here are tips that will prevent you from getting the flu in winter.

  1. Vitamin D – Take 2,000-10,000 IU of vitamin D3 a week to reduce fewer colds and flu up to 70 percent.
  2. Fresh air is the best medicine – Go for a long walk instead of staying at home the whole day.
  3. Get an air purifier with UV light – Germs can stay suspended in the air for days until it is inhaled or ingested. An air purifier will trap and eliminate airborne bacteria and viruses.
  4. Stop touching yourself – Viruses often pass from hand to mouth. Avoid touching your face, nose, eyes, and mouth. Sanitize your hand as frequent as possible.
  5. Sanitize household objects – Items you touched every day like a doorknob, remote controls, keyboards, handles, and so on.
  6. Exercise regularly – At least 3 times a day for 20 minutes. It can improve the body immune system and upper respiratory tract from infections.
  7. A good night sleep – Between 6-8 hours without any interruption. A person with consistent quality sleep is 28% less likely to catch a cold.
  8. Eat protein-rich foods – With milk, eggs, fish, and greek yogurt. Yogurt is our favorite as it contains a strain of probiotics that will boost our body defense against viruses.
  9. Take flu shots – Influenza vaccines can be taken annually to protect against infection by influenza viruses.
  10. Don’t smoke or hang around with smoker – Smoking increases your chance of respiratory infections. You will be more vulnerable to seasonal cold, influenza or H1N1 (swine flu).

Air Purifier With UV Light: How Does It Work?

Air Purifier With UV Light: How Does It Work?

What Is Ultraviolet Light?

Ultraviolet light is a type of invisible electromagnetic radiation with a wavelength from 10 nm to 400 nm. As part of the sunlight spectrum, UV light is shorter than visible light but longer than X-rays. UV radiation contributes about 10% of the total sun’s output. Historically, ultraviolet light is only used to disinfect water and surfaces. Now, you can find UV in black light (backdrop), tanning beds, arc welder, bottle sterilizer, medical equipment, and air cleaner.

How Does UV light Clean Air?

UV light works as how natural sunlight would. Disrupt microorganisms DNA cell thus killing or inactivate them from functioning. With the nucleic acids destroyed, microbes that are exposed to the UV-light would be left incapacitated. Most UV light bulb is made with phosphor or quartz materials. The emitted light may be invisible to us or with a slight blueish tint. With continuous application, UV light bulb efficiency will degrade over time. Most UV light bulb has a lifespan of 5,000-10,000 hours that requires replacing on a yearly basis. The durability of the lamp, temperature. humidity and design will also have an impact on UV performance.

What is UV air purifiers?

UV air purifiers are a single technology, stand-alone device used to clean the indoor air. When air is pulled into the devices, it will pass through a small internal chamber exposing to UV light. Through the sole power of ultraviolet light, the air cleaner will kill off microorganisms like mold, bacteria, and viruses. It is poor against pollutants like dust, smoke, and odor due to the lack of mechanical filter. Most UV air cleaners are compact and slim because there is only one filtration and it uses a thin light-bulb.

As for HEPA air purifier with UV light, it uses multiple filtrations to purify the air. When air is pulled into the filtration, the initial pre-filter, HEPA filter or carbon filter will trap all bypassing particles. This includes dust mites, pet dander, mold, pollen, tobacco smoke, bacteria, and viruses. The UV-light will then proceed by eliminating all trapped microbes on the filter so only clean air will be released out. HEPA air purifier with UV light is much more effective than a single UV purifier because it covers a wide array of pollutants.

Ultraviolet Light: UV-A, UV-B and UV-C

The shorter bands UV light has, the stronger energetic UV radiation will be produced by the Sun. Generally, Ultraviolet light is subdivided into 3 categories:

  • UV-A – The least dangerous ultraviolet light here. Long-wavelength 315–400 nanometers photons that vibrate the slowest. It is closest to surface area and covers around 95% of the sun’s radiation. Commonly used in tanning booths or disinfection tools. Overexposed to UV-A can cause the skin to wrinkles and age quicker.
  • UV-B – Medium-wavelength, 280–315 nanometers photons that vibrate slightly faster. It is often used in plant development to alter plant hormones. Overexposed to UV-B ray can cause skin cancer and damage your DNA. Good news is about 95% of the UV-B light is absorbed by Earth’s atmosphere.
  • UV-C – The most harmful UV light to living organisms and cells. Short-wavelength, 100–280 nanometers photons that vibrate the fastest. Prolonged exposure to UV-C light can cause permanent damage to DNA, eye, and skin cancer. Fortunately, 100% of UV-C radiation will be absorbed by Earth’s ozone layer. UV-C light is commonly used in sterilizing devices to clean and disinfect germs. All air purifier with UV light would be using type C as it is the most effective in killing bacteria and viruses.

Is UV C Light Safe In Air Purifier?

UV technology existed since 1908 and it is proven to be safe and reliable. There are reports suggested that UV-C radiation from an air purifier can be transfer out through oxygen in the air if the UV-lamp is uncoated. Through photolysis, the oxygen is broken apart and combine with other oxygen molecules to create ozone.

Exposing to UV-C lamp can cause sunburn and damage your eyes. In long-run, it can cause skin cancer, destroy your DNA and skin cell resulting irreversible damage. To prevent being directly exposed to UV-C lamp, avoid staring at the UV-light when it is active. Also, make sure the UV-light is properly installed in an air purifier with the cover closed.

What Is The Best Air Purifier with UV light?

There are many types of air purifiers with UV light in the market designed for different target audiences. It may be the devices main purification or as a subsidiary to its other filtration. So what we are looking for its the overall strength of an air purifier in dealing with all kinds of airborne pollutants. This includes dust, mold, pollen, mildew, spore, pet dander, bacteria, smoke, and viruses. Here is our best pick.

  1. Winix HR900
  2. PureZone 3-in-1
  3. Rabbit Air BioGS
  4. GermGuardian AC5250PT
  5. GermGuardian AC4100
  6. GermGuardian AC9200WCA

Whether is HEPA filter, carbon filter, Ionizer or UV-light, the air purifier filtration must be at the top of its game. To learn more, go to our best air purifier for germs with UV light page.

How To Get Rid Of Germs In The Air

How To Get Rid Of Germs In The Air

How Can Germs Spread?

Most germs are spread through the air by sneezing, coughing, kissing or even breathing in. The germs droplets can travel as far as 6 feet and even stay suspends in the air until it drops or someone breathes in. Another common way is by direct or indirect contact with objects contaminated with germs. Doorknob, pen, cellphone, remote control or even shaking someone hands that just had a cold. The person will be exposed to the viruses when he or she rubs her eyes, nose or mouth with her contaminated hands. Other less common ways of germs spreading are through sweat, saliva, sexual contact, blood, water or food ingestion.

Can Germs Make You Sick?

Germs can make you sick between 24 to 72 hours from the time you are exposed or inhaled to it. However, if our body immune system is able to resist the viruses, we will not fall ill or experience any unhealthy signs. If our immune system fails to fight off the viruses, we might experience symptoms such as sinus, cough, chronic headaches, or tiredness. Specific bacteria are known to cause ear infections, sore throats (tonsillitis or strep throat), cavities, and pneumonia. Viruses can cause chickenpox, measles, flu, and protozoa can cause intestinal infections. Prolong exposure to germs can aggravate many types of respiratory illnesses including asthma.


Get An Air Purifier With UV Light

There are 2 types of air purifier in the market you should look out for. First is a classic mechanical HEPA air purifier that will trap germs inside its filter. It is effective with 99.97% of capturing rate on microbes as small as 0.3 microns. Second is a UV air purifier with UV-light filtration. UV-C or ultraviolet light disinfects microorganisms by destroying their nucleic acids and DNA. Without the vital cellular, bacteria and viruses will be completely eliminated from the air.

Our take, why not both? There are air purifiers with the combination filtration of HEPA filter and UV-light. These air purifiers will trap germs on their filter and the UV-light will kill off the trapped bacteria and viruses. That way no germs will be able to once they are pulled in into the air purifier.


Sunshine Helps Kill Indoor Germs

Yup, sunlight will kill germs as Researchers at the University of Oregon concluded after 90 days. A room exposed to daylight regularly will have fewer germs compared with a room pitch black. Perhaps more surprisingly, when compared with a room sterilized with UV light, the result is not too far off. So if you want to reduce your risk of exposing to bacteria, let there be light.


Bacteria Killing Essential Oils

Yes, the essential oils drop candle or stick can actually kill bacteria and viruses! Most of us know essential oil as a natural scent product used in aromatherapy for body wellness. Besides helping you to relax and sleep better, essential oil is actually a very good antibacterial agent. The natural ingredient of essential oils will neutralize close by airborne bacteria and viruses. As not all essential oils are created equal, below are the top picks that will actually help in removing airborne germs.

Top 10 Antibacterial Essential Oils

  1. Tea Tree Essential Oil — Melaleuca alternifolia
  2. Peppermint Essential Oil — Mentha piperita
  3. Lemongrass Essential Oil — Cymbopogon citrullus
  4. Lavender Essential Oil — Lavandula angustifolia
  5. Eucalyptus Essential Oil – Eucalyptus globulusOrange Essential Oil — Citrus sinensis
  6. Geranium Essential Oil — Pelargonium graveolens
  7. Citronella Essential Oil — Cymbopogon nardus
  8. Oregano Essential Oil — Origanum heracleoticum
  9. Palma Rosa Essential Oil — Cymbopogon martini

Consider Having An Air Purifying Houseplants

While this is not our most recommended route, air-filtering houseplants do help reduce germs and allergens but in a less effective way. Through the process of photosynthesis energy, the plants will take in nearby airborne contaminants. This includes carbon monoxide, carbon dioxide, and harmful VOCs gases. Indoor houseplants can also create a positive ambiance in a home that helps ease tension and stress. Perhaps for that particular reason itself is worth more than any other germs removal factor.


Clean And Disinfect Household Items

Clean or disinfect everyday objects to reduce the risk of getting bacterial and virus infection. Germs are tougher than most think and will harbor on objects we are frequent in contact with. This includes grabbing handles, cellphone, doorknob, staircase rail, faucet, refrigerator handle, and more. When we touched our face, nose, and even mouth with our infested hand, we are indirectly exposing ourself to the germs.

For household objects that you are less frequent in contact with, you can clean or disinfect once a week or even a month accordingly. This includes countertops, kitchen floor, shelf, stairs, sofa, and table. For smaller items like towel, soft toys, cups, plates, you can toss it in a washing machine or dishwasher.


Take Out The Trash

Trash contains food waste, leftover spills, spoil eggs, dirty diaper, and other stuff that is full of germs. Take out the garbage at least once a day and spray the bin with a sanitizer to prevent bacteria growth. Use a plastic can liner to prevent trash spills and leakage that encourage the growth of germs. Always separate wet and dry trash (paper, box, plastic) to better manage your trash loads.


Take off Your Shoes

No one should wear their shoes indoors. What’s underneath your food wear is usually dust, dirt and even feces that is filled with bacterial germs. A study from the University of Arizona shows there are more than 400,000 types of bacteria outside of the home. So why do you want to transfer the outdoor contaminants into your home?

For those that insist on wearing shoes indoor, use doormat and try to scrub off as much dirt as you can. Remember to clean the doormat regularly as it can be very dirty on frequent use. You do not want the doormat contributing to more germs to your shoes.


Keep, Pet, Pest Out

Dogs and cats mucus, saliva, urine, feces, and dead skin cells all contain germs. This applies even for a hypoallergenic breed that is supposedly allergen-free. So to keep germs at a contained level, try not to have pets inside the house. If you must, limit their activity space and always vacuum and mop the floor every day is possible. Also, groom them every day and bath them with good conditioner shampoo to reduce shedding.

Home pest problems like rats, cockroaches, and gecko are also a germs carrier. They carry diseases like Hantavirus, leptospirosis, encephalitis, and E.coli that can be transmitted to human. Use bait or traps to catch them out or hire professional pest control.


Clean Or Replace Dirty Filter

Filters can get clogged from dust, hair, mold, and germs over time. When the filter is completely covered with particles, no air will be able to pass through. A dirty filter can do the opposite by spreading more pollutants and cause airborne germs to stay linger in a room. To prevent this from happening, make sure all ventilation filters are clean or replace properly. While you’re at it, make sure all HVAC or air conditioner are maintained according to schedule. Check for any condensation, water infiltration, leakage or mold infestation.

Do Air Purifiers Improve Sleep?

Do Air Purifiers Improve Sleep

Benefits Of a Good Night Sleep

  • Let your body heal itself
  • In a way prevent Cancer with through melatonin hormone
  • Reduces Stress
  • Help you curb your cravings and lose weight
  • Reduces Inflammation
  • Energetic and engaged
  • Improves your focus and memory
  • Napping makes you smarter
  • Reduce the risk of depression
  • Protects you from stroke and heart attack

Will An Air Purifier Help You Sleep Better?

Yes, an air purifier will improve your sleep quality because it will remove all the annoying irritants while you sleep. The only criteria are you will need to fulfill is the air purifier must have a True HEPA filter. A true HEPA filter will capture 99.97% of the allergens as small as 0.3 microns such as dust, dust mites, pet dander, mold, spores, and bacteria. Without those particulates irritating your allergies, you will have no nasal congestion, sinus, or choking cough to deal with. You will have your deep sleep and feel completely refreshed the next game.

Should I Sleep with An Air Purifier On?

Yes as an air purifier needs to be kept on to ensure there are no incoming airborne pollutants to disturb your sleep. If you are worried about the air purifier glaring LED light and noise level, opt for the newer air cleaner models. Models like Winix 5500-2 or MinusA2 all comes with Sleep mode that will set the fan speed to low and turn off all indicator light. There are some even argue that the soothing white noise from the air purifier actually helps them to sleep like a lullaby.

Do Air Purifiers Help With Radon Gas?

Do Air Purifiers Help With Radon Gas

What Are The Health Risks of Being Exposed To Radon

If your house has a serious radon issue that is unresolved, you are at risk of being exposed to the following symptoms and diseases:

  • Persistent cough with blood
  • Wheezing, hoarseness
  • Chest pain with breathing difficulty
  • Loss of appetite
  • Weight loss
  • Fatigue
  • Frequent infections such as bronchitis and pneumonia
  • Emphysema
  • Pulmonary fibrosis
  • Chronic interstitial pneumonia
  • Silicosis
  • Respiratory lesions

Will An Air Purifier Help With Radon?

An air purifier with a good activated carbon filter can get rid of radon gases at home. When we said good, the carbon filter must be a standalone carbon filter rather than a carbon sheet. Airflow delivery and coverage also plays a big role to ensure all radon gases are swiftly captured. Keep in mind though an air purifier will not stop the radon gas from continuously leaking in. You will need to get down to the root cause of the problem.

Can You Reduce Radon By Opening Windows?

Yes, but it will take ages to clear out all radon if the weather is kind. That means the amount radon leaking in will far exceed the radon from flowing out. Also, it is not a sustainable solution as radon gas will stay indoor in winter and summer where the air is hot and humid. Not to mention by opening a window, you are letting in more outdoor pollutants from flowing inside. Some airborne contaminants do not react well with radioactive gases.

Do I Need Radon Mitigation?

If your home’s indoor radon levels are 4 pCi/L or higher, we recommend going straight for certified radon mitigation. Not only it will cut off the sources of the radon leakage, a post-mitigation will reduce radon level >90%. Take note that radon mitigation costs vary from $500-1500 depending on the states and house conditions. It is not cheap but it’s effective and there shouldn’t be a price tag on your health. We do not recommend DIY seal cracks, improve basement foundations, and water drainage unless you have the expertise.

Where To Place Air Purifier In Home?

Where To Place Air Purifier In Home

Winix 5500-2 PlasmaWave

Do Not Place The Air Purifier At a Tight Spot

A console air cleaner can be really bulky especially if you are staying in a small apartment. It makes sense to place the air purifier at a corner or behind a wall so it will not be obstructive and a tripping hazard. Here’s lied the issue. Different devices might have one or more air intake in their body. They are either located at front, sides, top, bottom or back. Placing it close to a wall, furniture or even beneath a shelf will impede the airflow from coming in and out. When there is less airflow coming in, there will be fewer pollutants an air cleaner can capture.

Our suggestion: place an air purifier at least 1-2 feet of space between a wall or sofa. If the airflow intake or outtake is located at the back, you might need to leave 3-4 feet of clearance. If you are placing the air purifier in a bedroom, make sure there is enough gap between the bedside table for optimal airflow efficiency.

Put The Air Purifier Close To The Pollution’s Sources

There must be a reason why you brought an air purifier. If your concern is pet odor, place it next to the litter box. If your concern is smokers, place it where the tobacco smoke is emitted. If your concern is mold in a basement, place it directly in the basement. The closer the air purifier it is to the airborne pollutants, the faster it can capture the harmful particles. If you have multiple concerns on a different location, you will need more than one air purifier. There is no one size fits all.

Keep A Safe Distance From Windows and Electronic Devices

An air purifier is a lone ranger. It will not work well if is placed next to home appliances like oven, microwave, and television. The electronic device’s wavelengths could cause interference with the air purifier functionality. Also, avoid placing an air purifier directly underneath the windows. Extended exposure under the sunlight might damage overheat and damage the device.

Speaking of windows, keep it shut along with doors to reduce the incoming pollutants. While this is not as critical as a person staying close to nature, there is still plenty of outdoor contaminants that you least expected. Particles like dust, pollen, bacteria carbon monoxide are few of the common intruders. When you keep all windows and door shuts, the air purifier workload will be limited to the air circulating in the room. This makes clean air distribution a lot quicker and airborne pollutants are more controllable.

Where’s The Best Place To Put An Air Purifier?

The best location for air purifier would be in a bedroom as we spend 1/3 of our time sleeping. For those with babies or children sleeping in another room, it makes more sense to put the air purifier there due to their developing immune system. If you spend more time in a living hall, by all means, place the air cleaner there.

Ultimately, it would still highly depends on the root cause of poor indoor air quality. As mentioned earlier, it would be better to place an air purifier closer to problems to prevent the contaminations from spreading.

Will Air Purifier Benefits Your Skin? Can It Protect You From Eczema?

Air Purifier Benefits Your Skin

What Causes Skin Allergies?

Genetic, food, and indoor air quality are the main causes of your skin troubles. Most people are aware of food and immunization troubles but not so with its surrounding environment. Indoor pollutants is a very common problem in the city area yet often overlooked by most people. Common triggers include cigarette, cooking, and household chemicals that will affect our skin condition. Other factors include direct contact with airborne allergens such as bacteria, fungus, parasites or dust mites. Pimples, blackheads are some of the signs that our skin is congested with microbes. When your skin is so parched from all the blockage, any skincare you applied will be ineffective. Your skin will not be able to fully absorb the vitamins and minerals it required.

Can Air Purifiers Help With Eczema?

An air purifier can help with eczema from flaring up by removing harmful airborne allergens like mold, spores, and pollen. Also known as dermatitis, eczema is a chronic skin disorder where the skin becomes cracked, scaly red, swollen, and itchy. The cause is often related to dry skin, the food we consumed, scratching, sensitive skin and poor air circulation. Other than dry skin and food factor, an air purifier will play its part by circulating clean air in your home.

Air Purifier Reduce Rashness, Heals Acne, And Slow Down Aging

With less indoor pollutants from triggering a skin irritation, your skin will not flare-up and there is no redness or itchiness. Without the rashes, you will not have the urge to scratch your skin and thereby less contact from hand’s bacteria. Breakouts and pimples will recover faster because there are fewer bacteria from infiltrating.Skincare products such as moisturizer, lotion will achieve a better result on application.

Like overexposure to ultraviolet light, particulates can break down collagen and elastin (elastic protein) in the tissues. Without the supportive tissue, your skin will become saggy and droopy as muscle weakens. An air cleaner will trap and prevent the particulates from damaging your skin. This extent the aging process timeline and your skin will retain its soft, youthful look.

Air Purifier Are Good For Your Skin Tone

To get a glowing, even skin tone, you will need an air purifier with HEPA filter. It will trap hydrocarbons that are notoriously linked with poor skin pigmentation. Polycyclic aromatic hydrocarbons (PAHs) are a group of chemicals released from burning coal, oil, gasoline, and tobacco. It can be found in both the outdoor and indoor environment. The lesser PAHs is in the air, the less oxidation your skin would experience. The dermal layer in your skin will remain intact thus less discoloration will occur to process vitamin A.

Will An Air Purifier Dry Out The Air?

No, an air cleaner that relies on a mechanical filter for filtration will not dry out the air. It is designed to trap airborne particles like dust, hair, and pet dander. Still, if you feel the air is stale and dry, you will need a humidifier. Think of humidifier as drinking water but to your skin. It keeps your skin moisture, rejuvenate and elastic. Furthermore, it can flush away any microorganisms thus reducing breakouts.

Humidifier runs well together with an air purifier so I would recommend getting an air purifier with a built-in humidifier. You can learn more about air purifier VS humidifier here.

3 Non Air Purifier Tips On Improving Skin Condition

Cleanse & moisturize. Even though there are fewer particulates setting down on your skin with an air purifier, is better to wash your skin daily to clear our any leftover. The fewer irritants are there on your skin, the more oxygen your skin would be able to inhale. Oxygen plays a key role in slowing down skin age and appearance of wrinkles. To cap it off, use a moisturizer to keep your skin hydrated while forming a protective barrier against pollutants.

Eat right. Maintaining good eating habits can ensure that your skin is strong and healthy. Focus on foods rich in antioxidants and vitamin C such as Apricots, Oranges, Cauliflower, Nori and Grapefruit.

Drink plenty of water and exercise on a regular basis. Avoid smoking and hanging around with smokers. Remember, Air purifier by no means is an all-in-one solution. A beautiful Skin Starts From Within.

Are Air Purifiers Safe? Can it be harmful?

Are Air Purifiers Safe?

HEPA Air Purifier

Lets began with the most obvious choice that you should go for. HEPA air purifier relies on a mechanical filter to draw air in and trap 99.97% of particulate matters as small as 0.3 microns. This includes dust, pet dander, microbes like mold, spore, pollen, and bacteria. The in-flowing particles will remain trapped by the filter and only clean air will be release out. HEPA air purifier also supports multiple filtrations i.e. pre-filter, carbon filter, ionizer or UV-light. It is the all-in-one purification type that you could get in the market. The only downside is the filter replacement cost that occurs every year or so. Failing to replace the filters would result in decrease effectiveness or worse damage the devices.

UV Air Purifier

UV-light is a technology that we adore but as a standalone filtration, it lacks the punch and durability. Let’s start with what we like about UV air purifier. It is a 100% safe and proven technology that has been used in many household products as a sterilizer. UV-light is also very effective in killing microorganism like bacteria and viruses. The ultraviolet light kills the microbes DNA cell, unlike a filter that traps it inside a filter. There is zero chance of the allergens from multiplying or escaping.

The problem with UV-light as mention earlier is the effectiveness and durability. It is not very effective when dealing with other types of particles like dust, pet dander. The efficiency will drop on gradual use depending on the light lifespan. For the 2 reasons mentioned, it is recommended that UV-light is used in conjunction with a HEPA air purifier.

Ionizer/ Electrostatic Precipitators

First thing first, an ionizer is not an ozone generator even though some Ozonator do have this feature. It is basically a negative ion generator that disperses millions of negative ions into the air. Ions are naturally occurred particles that are harmless to our body. What ionizer would do is to electrostatic-ally charge oxygen atom into negative ions. The negative ions will then be released and attach with surrounding positive ions particles. the heavier, merged ions would be weighed down and fall to the ground or stuck on the wall. This effectively removes all the unwanted particles out of the air so we won’t breathe into. Electrostatic Precipitators is the same thing as ionizer but with extra collector plate. The additional plate is used to collect fallen particles from scattering all over the room.

There are 3 major setbacks using an ionizer. First, the contaminated particles would still be in the room and can be stir back up to the air. Second, the whole purification is slow and ineffective compared with HEPA air purifier. Finally, it will generate mild burned smell and increase the chances of static shock.

Ozone Generator: The Reason Why Air Purifier is Getting The Bad Rap

It’s all because of one trouble maker that is giving air purifier the bad name and is call Ozone generator. It is NOT an air purifier despite the manufacturer is pushing the other way around. What those sneaky manufacturers will do is to hide the word “ozone” from its packaging or brochure. Instead, they replace it with popular words like “HEPA”, “Ionizer”, and of course “air purifier” to mislead the consumer. When consumer falls for the marketing gimmick and purchases one of this death trap, they are opening themselves to the toxic gas. Worst still, anyone staying in the same roof with would be slowly poison by the silent killer.

Why Is Ozone Harmful?

Ozone (O2) is an unstable and reactive molecule made of 3 oxygen atoms. The third oxygen atom can detach and re-attach to other substances molecule to restore its diatomic state. This resulted in alternation to a substances chemical composition that can be unstable and dangerous to our body.

So What Air Purifier Is Safe And Works?

All air purifiers are safe except for ozone generator. Ozone is bad for our health as the Environmental Protection Agency (EPA) stated so. Even small concentration (0.08 parts per million) of Ozone can lead to cough, throat irritation, and breathing difficulty. Inhaling to high concentration can cause chest pain and damage lung tissue cells. For people with an impaired immune system or asthma, long exposure to ozone may aggravate the diseases. Ozone can also deteriorate rubber and plastic even at a low concentration level of 0.35 parts per million. The deterioration of the household objects will release toxic gases that are extremely harmful to our health.

In short, get a HEPA air purifier as it is proven to be safe, effective, and more importantly, does not produce ozone! There are many big brands out there that would fit the bill but do consider the following options instead.

  • Enough airflow performance (200 cfm minimum) and coverage for a room.
  • Decent True HEPA filter NOT HEPA-type.
  • Additional filtration support such as carbon filter or UV-light.
  • Autonomous purifying for zero fuss operation and better energy management.
  • Noise level or sleep mode if is for bedroom use.
  • A price point that you are comfortable with.

How much should you pay for a HEPA air purifier? That depends but $200-500 is an acceptable range in our book. If you want a more powerful unit obviously you will have to pay more. Rather than pointing you straight to the most expensive unit, you will have to decide base on the condition. If a household member has asthma, children or pets, a higher spec air purifier would make more sense. You can find out more details on our latest best HEPA air purifier list here.

Do Air Purifiers Work For Pet Allergies? (Pet hair, Dander, and Odor)

Do Air Purifiers Work For Pet Allergies

Can An Air Purifier Help With Pet Allergies?

An air purifier can get rid of pet allergies by removing pet hair from the air. It will also remove airborne pet dander, germs, and even odor associated with your furry pal. Without the allergens occupying your airway, there is less chance of you from inhaling to it. Irritation like sneezing, swollen eyes, breathing difficulty will be gone with the wind. With an air purifier running in the background, you and your furry friend will both live happily under one roof.

What Types of Air Purifier Is Best For Pet Dander And Allergies?

There are 8 types of air cleaners in the market and we are pushing on only 1 type: HEPA air purifier. It is the most common type and you have lots of different option to go for. We recommend picking on an air purifier with True HEPA filter that traps pet dander, hair, and bacteria as small as 0.3 microns at 99.97% efficiency rate. Other filtration like UV-light, ionizer, or carbon is welcome because they do help in some way reducing allergies. Forget about Electrostatic Precipitators, Ozonator, or UVGI cleaner. Those are not 100% certified on efficiency and big brands don’t carry them.

What Causes Pet Allergies? Cat Or Dog?

People who are allergic to cat or dog have an overly sensitive immune system. The immune system will flares up to the harmless protein substances from the pet dander. This set off allergy reactions like sneezing, running nose, or cough. A lot of people think pet dander is just cat or dog hair. It’s so much more than that. Beside being shed from pet’s skin that is very sticky to upholstery, pet dander also comes from dead skin flakes. It also contains protein that you find in your cat or dog’s saliva, feces, and urine. The protein in cats is called the Fel d I protein while the proteins in dogs are called Can f I and Can f II. Cat allergies are more common at home but are often triggered by their dried saliva rather than pet hair. For dog allergies, it is usually dandruff from its fur that is causing the trouble.

What Is The Best Air Purifier For Pet Allergies?

Most HEPA air purifier would tick the box but only the great one will prevail. To qualify, a True HEPA filter is a must, along with strong airflow delivery rate and coverage. Whether is a cat, dog, hamster, rabbit or even bird, the below pet air purifier would do a bang-up job.

  1. Austin Air Pet Machine
  2. Rabbit Air MinusA2
  3. Winix HR1000
  4. GermGuardian AC5250PT
  5. Alen BreatheSmart

So to recap, if you are an asthmatic person, hyperallergic to pet dander or pet hair, the above models will be your savior. Find out more about our best pet air purifier choices along with full reviews here.

Do Air Purifiers Remove Odors? Will It Make My House Smell Better?

Do Air Purifiers Work Remove Odors

Do Air Purifiers Get Rid of Odors

Yes, an air purifier does remove odor from the air but only a certain type of air cleaner will do. To be more specific, only a HEPA air purifier with a carbon filter can get rid of the smell. This includes any odors from cooking, pet, diaper, to wood burning, and cigarette. For chemicals fumes like VOCs, CO, or Radon, it is still removable but you will need a better activated carbon filter from the likes of Blueair or IQAir.

How activated carbon filter works is simple. First, airborne pollutants will be pulled towards the air purifier. Next, the carbon filter absorbent pellet will adhere to inflow odor compounds via chemical adsorption. With the odor trapped inside, the air purifier will release only fresh air without any smell.

What Types of Smell Do Air Purifier Remove?

An air purifier can eliminate all kinds of smell. But in general, these are the 5 odors that most household would encounter.

  1. Smoke – As cover in our previous post, an air purifier will remove most gaseous pollutants but with a caveat. If the smell has stained into porous objects like drape, cloths, or wall, there is nothing an air purifier could do. The perfect example is third-hand smoke that is notoriously difficult to remove. Moral of the story: never smoke indoor even you have an awesome air cleaner.
  2. Pet Odor – They fart, they smells, and they puke. Pet odor is an avoidable package when it comes to owning a pet. No matter how often you bath them, change the litter box or keeping them indoor, the nauseating smell will still come back to haunt you. An air purifier will not only curb down on the pet odors, it will also remove pet dander, germs, and bacteria. With less shed hair floating around, all your pet troubles will eventually go away.
  3. Dirty diapers
    Good news is dirty diaper is only a phase that can be outgrown. Bad news is the odor will permeate the air and will swiftly stink up the place. Sealing a dirty diaper or getting a diaper disposer is the sensible choice, so is getting an air purifier. Your baby will be protected from allergens and viruses while your home will not smell.
  4. Food – A good range hood will do wonders in removing cooking smoke but it can only cover so much. Your deep-fried fish scent will find its way across the room even if you clear up all the food. Don’t get me started on the burned dish that stinks up the whole place serving you as a reminder. This is where an air purifier will come in handy every time you cook. The carbon filter will eat up all the excessive food smell. Think about it has a portable exhaust hood.
  5. Household products – From your daily detergent, perfume, to air freshener and fresh new paint, it will cover them all. Not only an air purifier will remove the emitted most smell, it will also filter out the chemical gas that is bad for our health. keep note that some of the toxic gas is colorless and odorless thus an air purifier should be on 24×7 in the background.

What Is The Best Air Purifier For Odor?

Skip ozonator, ionizer, UV-light types. Go with classic air purifier with a standalone activated carbon filter (NOT carbon pre-filter). Look for keywords such as alumina, coal, potassium permanganate, coconut shells. Next, choose an air purifier with enough purifying coverage for your entire room. You can learn more about room size calculation here. With that, here are our recommended models that may or may not suit you at the price point.

  1. Blueair 605
  2. IQAir HealthPro Plus
  3. Winix 5500-2
  4. Airmega 300S
  5. Rabbit Air MinusA2

Check out the full reviews at in our best purifier for smell page.

Do Air Purifiers Work for Mold?

Do Air Purifiers Work for Mold

Removing Mold With Air Purifiers

Air purifier does work with mold even though it can only target microbes that are airborne. When the airborne mold spores are drawn into the filtration, the HEPA filter will capture the microbes from proceeding. All the incoming allergens will be safety trapped inside the fibers and the air purifier will only release purified air out. If the air purifier comes with UV-light, it can destroy the microorganisms permanently.

With less mold spore in the air, there is less chance the mold would be able to spread across the room and grow. You will see less mold infestation on the wall, ceiling, shelf, and even settle on the floor. Your mold symptoms will also gradually go away as the exposure is lessened.

Air Purifiers Limitation

An air purifier can get rid of airborne mold but it cannot touch any mold or microbes that are settled on the ground. This includes mold that is stuck on the wall, wood, upholstery or ceiling board. When the environment is damp enough for mold to thrive, it will continue to do so and the spreading never ends. To address the root cause, you will need a dehumidifier to take away the moisture in a room. Without the ideal humidity level, the mold will not survive let alone grow. You can learn more about the differences between air purifier and dehumidifier here.

Another common air purifier problem is mold reproduction in the filter. Mold and other microbes that are trapped in the filter will reproduce if the humidity is just right. When the “new” spores are ready to spread, the air purifier will unintentionally help circulate the mold across the room. This is the reverse effects on what an air purifier suppose to do. To counter this problem, make sure the HEPA filter comes with an antimicrobial treatment that will halt any trapped mold from growth.

What Air Purifier Is Best For Mold?

Air purifiers are good at removing airborne microbes. That is what it is meant to do. After some intensive comparison between many excellent HEPA air purifiers, we handpicked the best of the best.

  1. Rabbit Air MinusA2
  2. IQAir HealthPro Plus
  3. Winix HR1000
  4. Honeywell HPA300
  5. Airmega 400

All of the above air purifiers used a genuine HEPA filter with at least 99.97% filtration efficiency. Airflow performance must be decent to cover the entire room from the airborne mold. Few of them even have an antimicrobial coating that prevents microbes from growth. To learn more on the above picks, visit our best air purifier for mold page.

Do Air Purifiers Work for Smoke?

Do Air Purifiers Work for Smoke

Do Air Purifiers Help With Smoke?

Yes, an air purifier will remove smoke and other gaseous pollutants. This includes fire smoke, cigarette/ cigar smoke, and chemical fumes e.g. VOCs, CO, or Ammonia. But not any type of air cleaner will work. Only an air purifier with carbon filter would be able to achieve that. When the smoke is drawn towards the filtration, the many absorbent pellets in the carbon filter will begin absorbing the pollutants. This leaves the smoke and particulate matter trapped inside the filter for good.

An air purifier is particularly useful if you are a smoker or someone in the family smoke. It will protect everyone in the household from breathing into the toxic gas. It is extremely useful if you have a baby or children at home due to their weakened immune system. For external factors such as haze, industrial or car fumes, an air purifier would also come in handy.

How Long Does Secondhand Smoke Stay In a Room

Second-hand smoke can linger around 2-5 hours in a room depending on ventilation. The harmful smoke will also spread rapidly from room to room even if the door is closed. Eventually, the toxic residues will float across the entire home and penetrate deep into porous materials like wood. Once the residues have settled down, it will take at last couple of months before the effects lessen. It’s safe to say smoking indoor is a terrible idea unless you enjoy inhaling to third-hand smoke.

2 Alternate Way of Removing Smoke At Home

First one is a no brainer. Stop indoor smoking habit. If you need to lit one, do it outside as far away as you can. Second is the most common way that needs no introduction. Open the windows for better air circulation. Unless is raining outside or you live next to a highway, indoor air quality is definitely worst compared to outdoor air. Leave the window open for a couple of hours or until the smoke flush out.

Best Air Purifier For Cigarette Smoke

Only air cleaner with carbon filter would fit the bill. Ignore Ionizer, Ozone generator or UV air purifier types as they will do a half-baked job. Look for keywords such as activated carbon, alumina, potassium permanganate, coconut shells or coal in the filter. Also, consider the air purifier airflow delivery rate and overall coverage. This is a critical factor as smoke will spread swiftly in the air. With that, here is our best smoke air purifier curated for you.

  1. IQAir HealthPro Plus
  2. Blueair 605
  3. Winix 5500-2
  4. Airmega 300S
  5. Rabbit Air MinusA2

Check out the complete list with specification and reviews at our best smoke eater air purifier page.

Does An Air Purifier Cool A Room?

Does an air purifier cool a room?

Do Air Purifiers Cool Down A Room?

A standalone air purifier will NOT cool down a room. In fact, it will also NOT heat up a room. It is designed only to filter and circulate clean air from airborne particles and smoke. There is no cooling unit like evaporator coil or condenser coil in its setup. A typical air purifier is basically made out of a couple of filters and a built-in motor fan. Most people might think otherwise is because they feel a breeze of cool air that blows out from the outlet. This is what we would call “wind-chill” where the flow of lower temperature airflow provides temporary chills to our body. The effects are actually more noticeable when is the air cleaner is on higher fan speed or you’re sweating.

  • Close the windows and doors (when the weather outside is hot)
  • Open the windows and doors (when the weather outside is cold)
  • Air conditioner
  • Fan (portable, ceiling fan, stand fan, tabletop)
  • Everybody out (The lesser people, the cooler a room will be)
  • Improve room ventilation by removing unused household items
  • Turned off unused electronic devices (save electricity and reduce heat)
  • Opening windows or doors is our favorite as it can be done in a snap. However, there is the risk you will have to bear when you open more windows “opportunity” to the allergens. Regardless of which method you choose, you should always keep an air purifier running since it will not affect room temperature. It will help capture all in-flowing airborne contaminants like dust, mold, pollen, germs or even smoke.

    Do Air Purifiers Help With Allergies?

    Do Air Purifiers Help With Allergies

    What Is Causing My Indoor Allergies?

    Your allergies could be caused by one or more things. An allergic reaction happens when our immune system is overreacting to harmless substances. In some cases, we might be able to pinpoint what triggers the allergies but isolating the allergens one by one. Most of the times it is impossible to do so as there are too many factors to account for. Still, is good to know what types of allergens are out there so you could prep yourself.

    Here are the most common indoor allergens in a household.

    1. Dust/ Debris/ Dust mites
    2. Pollen (from plants, grasses, trees, weeds)
    3. Mold/ Mildew
    4. Pet dander
    5. Chemicals (VOCs, Radon, Ammonia, Carbon Monoxide)
    6. Bacteria/ Viruses
    7. Smoke and Odor (from cooking, cigarette, chemicals)
    8. Food
    9. Latex (including the smell)
    10. Cockroaches/ Insects

    Screening through the list, I’m sure you definitely encounter at least 3 of the culprits above. Other than the bottom 3 food, latex, and cockroaches, everything else can be removed by a HEPA air purifier. With only one condition, the allergens must be airborne.

    Do Air Purifiers Really Work For Allergies?

    An air purifier can relieve allergy symptoms by removing all the airborne irritants. Without the irritants to breathe into, there would be no sneezing, cough or even fever to begin with. Notice we used the keyword AIRBORNE earlier? If the allergens for example dust has fallen to the ground, drapes, or bed, there is nothing an air purifier can do. The allergens will remain there until it is clear away or stir back up in the air. That is why you need to keep the air cleaner running 24×7 so it can capture any disturbed particles.

    The Right Type of Air Purifier

    In general, there are 8 different types of air purifier in the market. Some of them are OK like UV light but a few are complete rubbish. To make it easy for you, we suggest going straight for a mechanical air purifier with True HEPA filter. It is safe, proven, and very effective against all kinds of allergies including germs. The filter will be able to trap at least 99.97% of the microscopic allergens as small as 0.3 microns. Picking a HEPA air purifier would cover seasonal allergies throughout the year.

    Choosing the Right Size Air Purifier.

    Once you have decided on a HEPA air purifier, It’s time to choose the right size air purifier for a room. First, calculate your room size by multiplying length with the width of a room. You could go further by multiplying the ceiling height but through our experience, the outcomes are more or less the same. To recap, here are the room volume calculation.

    Length x Width x Ceiling height = Room size

    The reason we need to know the room size is to make sure the air purifier has enough power to cover the entire room. Remember, the more airflow juice it has, the faster it can remove the airborne allergens in the air. There is no point in getting a small air cleaner if it cannot cover the entire room. With the figures, we can pick the right air purifier through the purifying coverage or CADR. Keep in mind that the numbers given by the manufacturer are based on one air changes per hour (highest fan speed). Realistically, if you are constantly running the air purifier on a lower speed, you might need to consider a bigger coverage to balance things up. You can learn more about the room size calculation and choosing the right air purifier here.

    What Else Can I Do To Make My House Allergy Free?

    An air purifier by itself would not be sufficient to get rid of your entire home allergens. You will need to vacuum frequently to clear out all the ground dust and debris. Carpet and mat are notoriously known to attract germs and allergens. Wash your drapes, curtains, bed sheet or upholstery routinely or when it is dirty. Replaced worn out filters in the air cleaner, furnace or HVAC system in time. Keep windows shut when outdoor air quality is bad. Finally, avoid having pet indoor and never smoke inside the house.

    What Is The Best Air Purifier For Allergy Sufferers?

    Here are our handpicked best air purifier for allergies in different sizes.

    1. IQAir HealthPro
    2. Airmega 300
    3. Coway AP-1512HH
    4. Honeywell HPA300
    5. Rabbit Air MinusA2

    To see the full list and spec sheet on the above models, head over to our best air purifier for asthma and allergy post.

    Can You Leave Air Purifier On All The Time

    Can You Leave Air Purifier On All The Time

    Should I Run an Air Purifier All Day?

    Yes and ideally you should leave it running 24 hours a day. It’s OK to leave the air purifier on all the time as allergens and germs contaminants do not take a break. Depending on the indoor air quality, new harmful particles will gradually return within 2-4 hours. If the air purifier is off during that period, it will take a longer time for it to start cleaning the air again. Even if you are away for work and nobody is at home, we recommend leaving it on but on a lower speed. When you’re finally back from work, you will be breathing straight out fresh air and nothing else. If you are confident on your indoor air quality while you’re away, turn it off before you leave the house or set a timer for auto-shutdown. You can also selectively let the air purifier run on all-day when it is allergy season or there is a haze invasion.

    Can I Leave My Air Purifier on All Night?

    Yes and we insist you sleep with an air purifier on. Mold, pollen, bacteria, and viruses are easily spread through airborne and will always be lingering around. If can be the differences between good quality sleep and having a bad day. We spend one-third of our time in bed, it doesn’t make sense that all airborne irritants will go to bed same time as you. So rather than risking yourself from exposing to the allergens all night long, let the air purifier “clear the air” for you.

    Will The Air Purifier Use A Lot Of Electricity If I Leave It On All Day?

    It will definitely use more electricity but only to a certain extent. Most air purifiers consume little energy especially models that are Energy Star Rated. To converse more energy, start with the highest speed for 1-2 hours. Then tone it down to medium or low speed and you can leave the air purifier untouched throughout the day. Better yet, if it comes with Auto mode, skip all above and rely on the autonomous purifying instead. Remember, the lower the fan speed, the lesser energy it consumes.

    When Should I Start Considering Changing The Filter?

    1 year is the norm but as soon as the filter lifespan is reached, you will need to replace it immediately. You can tell it’s time when the filter change indicator has lit or you have manually jot down the end date. That’s the drawback of having an air purifier running perpetually as filter tends to wear out quicker. Some filters are washable so you can reuse multiple times without having to replace it. If you don’t replace the filter in time, harmful particles will remain in the airway unfiltered. Whatever particles that flows in the air purifier will not be trapped and escape scot-free again. Also, the poorer the air quality, the faster the filter will be exhausted. Consider having a standby replacement when the filters are reaching the end of the cycle.

    Can An Air Purifier Make You Sick?

    Can An Air Purifier Make You Sick

    Can Air Purifiers Be Harmful?

    An air purifier is actually good for your health and WILL NOT make you sick. It is designed to improve indoor air quality by removing airborne contaminants. In fact, it will trap all the harmful germs and viruses that are often the root causes of illness. We all know how quick viral virus can spread through the air and how contagious it can be. With the air purifier working continuously in the background, you will reduce the risk of breathing into the allergens. Therefore, there is less likelihood you from falling sick from the viruses.