6 Best Bedroom Air Purifier In 2021 (Quiet Operation)

Poor indoor air quality can greatly impact your sleep pattern. It is a fact as a good night sleep is essential for our health and well-being. Yet, millions of people worldwide are suffering from sleep apnea due to work stress and unhealthy lifestyle. As poor air quality is gaining traction especially in an urban area, having a personal air cleaning device is the best solution. Through tons of testing and researches on different air purifiers over the years, we have curated the best bedroom air purifiers you can buy right now. Let's jump straight to the in-depth review below.

Who is this for?

Best suited for people having difficulty falling asleep due to poor indoor air quality. Another telltale sign would be waking up with a bad headache, fatigue, sore throat, or sinus. An air cleaner would also be ideal for a person that spends a good amount of time in the bedroom. Last but not least, you have baby, children, elderly, or pets at home that doesn't mind the soothing white or pink noise generated from an air cleaner.

2020 Best Bedroom Air Purifier

Air PurifierOnline Price (Amazon)FiltrationCoverageScore
Winix 5500-2 Air Purifier


4-stage360 sq. ft. (33 m2)8.5
GermGuardian AC5250PT Air Purifier


5-stage180 sq. ft. (17 m2)5.7
PARTU BS-03 Air Purifier


3-stage107 sq. ft. (10 m2)7.3
Coway AP-1512HH Mighty Air Purifier


4-stage326 sq. ft. (30 m2)9.3
Rabbit Air MinusA2 SPA-780A Air Purifier


6-stage815 sq. ft. (76 m2)9.1
LEVOIT Core 300 Air Purifier


3-stage219 sq. ft. (20 m2)7.3
How Do We Measure?
Dimension The average bedroom size in the United States is 132 square feet. Most bedroom-centric air purifiers would be able to cover that but you will need to account for bed, wardrobe, or table lamp that occupy the space in a room. As such, we always recommend picking an air cleaner that has a higher airflow and room capacity to balance the in-room obstruction.
Noise level The level of noise outputted is a very important consideration for bedroom air cleaners. The ideal decibels will be below 35 dB with a reasonable airflow delivery rate. As every bedroom will differ in spaces, we will measure the noise level at the lowest, maximum speed, and do the performance comparison of everyday use.
Sleep mode Sleep mode is a useful feature that will maintain the fan speed to low but still capable of tackling impurities in the air. When operated on the lowest speed, the featured model must be adequately silent so owners can run it without having to worry on excessive noise. Some Sleep mode automatically dims down on the indicator brightness when you turn off the room light. We appreciate that too.

Winix 5500-2 is always the first in our consideration list for many good reasons. It has a decent 53 to 226 cfm airflow output and a wide 360 square feet coverage that can cater to a large bedroom. Supporting that is the impressive CADR at 243 cfm dust free, 246 cfm pollen free, and 232 cfm smoke free. The noise level stands at 26.6 decibels at the lowest speed to 60+ decibels at max speed. If you have any concerns about the fan noise, both auto mode and sleep mode are available to help curb down the background sound. In auto mode, higher fan speed will only be activated once the sensor detected a high level of pollutants to keep energy consumption low. In sleep mode, the fan speed will automatically set to low with reduced brightness on the indicator when you switch off the light.

Here is the featured spec sheet of Winix 5500-2 PlasmaWave:

  • Dimension (W x H x D) - 15 x 23.6 x 8.2 in
  • Weight - 15.4 lb
  • Noise Level - 26.6 to 60+ dB
  • Sleep Mode - Yes (Auto)
  • Filtration - Pre-filter, True HEPA filter, AOC Advanced Granular Carbon Filter, PlasmaWave Technology

Powered by the familiar 4-stage PlasmaWave filtration like most Winix models in the lineup. The initial pre-filter would trap large particles like dust, lint, fiber, and hair while extending the HEPA filter lifespan. The protected True HEPA filter will now focus on removing 99.97% of airborne irritants down to 0.3 microns that are flowing above your sleep area. Next, the deodorization AOC Carbon filter will effectively adsorb smoke and toxic gases like ammonia, radon, VOCs, CO, CO2. Finally, PlasmaWave technology would emit Hydroxyls to assist in dismantling the molecular structure of chemicals, germs, and odors.

In spite of having so many filters in the body, Winix 5500-2 is not too bulky that will occupy a large chunk of your room size. At 15 x 23.6 x 8.2 in dimension and 15.4 lb weight, you do not even have to place it right next to your bed. Being one of the more stylish bedroom air purifiers in the market, Winix 5500-2 is well-equipped with practical features such as remote control, air quality indicator, filter change indicator, and timer. All these features can help enhanced the usability of the air cleaner so you will spend more time doing the things you loved. The official 2 years warranty is assuring to say the least. Overall, there are not many faults you can find here. If you are being picky, the annual filter replacement cost can stack up quickly for the coming years. The carbon filter might not be the quickest in removing odor but not a big deal since the smell will be clear out eventually when you kept it running throughout the night.

An air purifier may not be all the answer to your sleeping disorders if you have excessive daytime sleepiness. But if you experience breathing irregularity and sweat during sleep, Winix 5500-2 might be able to help. Without the harmful particulates pestering your sleep, you will breathe more smoothly and wake up feeling completely refreshed.

In short: For less than 150 (after discount), Winix 5500-2 is budget-friendly yet without compromising on any practicality. The strong and silence airflow performance is good enough to cover all bedroom sizes.

± 249 p
     Annual filter ^    
± 80 p
 Online price*

If you like 5500-2 yet need a much slimmer profile air purifying device, GermGuardian AC5250PT Pet Pure is your go-getter. The capable yet whisper quiet air purifier to ensure you many nights of uninterrupted sleep in the bedroom. At only 6.1 inches in width and 9.5 inches in depth, there is no issue finding a place for GermGuardian AC5250PT in the bedroom. The 10.5 lb weight is not the lightest, but you can still carry it from room to room that needs air purifying. Controls wise, even though there is no auto/ sleep mode, you still have a highly adjustable 5 fan speed, 1 to 8 hours programmable timer, digital display, and a filter reset button. To keep the noise level down during sleep, manually set the fan speed to low and the air cleaner will operate silently throughout the nighttime. Power consumption will be based on the fan speed you are constantly in but it will be in the energy-efficient bracket. Another thing that we liked about GermGuardian AC5250PT is the comprehensive 5 years manufacturer warranty. A step up from the previous AC4825 3 years offering with the same coverage on parts and motors.

Let's explore the key features of GermGuardian AC5250PT Pet Pure:

  • Dimension (W x H x D) - 6.1 x 27.3 x 9.5 in
  • Weight - 10.5 lb
  • Noise Level - Silent
  • Sleep Mode - No
  • Filtration - Charcoal pre-filter, True HEPA Filter with Pet Pure antimicrobial, UV-C Technology

Here is the reason why GermGuardian AC5250PT Pet Pure is best for pet owners. The 5-stage air cleaning system offers a modest 180 square feet room coverage with 123 cfm dust free, 128 cfm pollen free, and 116 cfm smoke free. While the numbers might not seem a lot, for bedroom use it is perfectly fine. Going through the filtration, the outer charcoal pre-filter will capture dust, hair, mild smoke, and odors. By filtering out all the large impurities, The HEPA filter can efficiently remove 99.97% of microscopic particles as small as 0.3 microns including dust mite, pet dander, pollen, and mold spore. The HEPA filter is also coated with an antimicrobial that is important to inhibit the growth of microbes in the filter. Finally, the UV-light will kill any inflowing bacteria and viral viruses that can aggravate your allergies. The entire purification process works very well especially if you have indoor pets like a cat or dog that sheds every single day. It will capture airborne pet hairs and reducing the chance of you inhaling to it or sticking on your pillow, bedsheet, floor.

There are always pros and cons in an air cleaner. No exception with GermGuardian AC5250PT. The carbon pre-filter is not the best against smoke and odors, especially if your bedroom is in the basement. The filter also requires more frequent change between 6 to 9 months. Lastly, the 50 to 80 dollars filter replacement cost might be slightly pricey for someone that needs a basic air cleaner for bedside use.

Nobody can live without sleep. Good quality sleep is crucial to maintain healthy wellbeing. If you are still not sleeping well despite having GermGuardian AC5250PT Pet Pure presence in the bedroom, air quality may not be the main issue. Consult a sleep specialist to understand your situation.

In short: A cost-effective and silent bedroom air purifier for allergies with a complete 5-stage filtration system. Perfect for pet owners that have pets sleeping in their bed.

± 159 p
     Annual filter ^    
± 53 - 80 p
 Online price*

A cheap and compact air purifier that works great in the bedroom and living hall. PARTU BS-03 is a mini-sized device that comes with 3-stage HEPA filtration for less than 50 bucks. That's right, all filters are inclusive and fitted in the compact 9.6 inches diameter and 17 inches height body. At only 3.2 lb in weight, it is very easy to carry PARTU BS-03 around during travel and use it in a hotel room and guest room for good night sleep. Having smaller filters also means you don't need to accommodate a big fan. That itself will help keep energy consumption low to support the spinning fan. The most unique feature of all, there is a fragrance design sponge that allows you to add your favorite natural essential oil. An essential oil can help you sleep better, relax, alleviates insomnia, and reduce anxiety. Choose from the long variety of Citrus, Honeydew Melon, Quince, Musk, Vanilla, Orris, or Vetiver.

Let's look into the specification of PARTU BS-03 air purifier:

  • Dimension (W x H x D) - 9.6 x 17 x 9.6 in
  • Weight - 3.2 lb
  • Noise Level - 38 to 59 dB
  • Sleep Mode - No
  • Filtration - Pre-filter, True-HEPA filter, Activated carbon filter

No inferior HEPA-type filter or carbon sheet in PARTU BS-03 3-stage air filtration. The first-stage fine preliminary pre-filter will capture large particles while extending the lifespan of the HEPA and carbon filter. Without dust contaminants clogging the filter, the True HEPA filter will effectively remove 99.97% of microscopic particles in the air as small as 0.3 microns. The standalone activated carbon filter will neutralize smoke and odor gases through adsorption. Even though the 107 square feet room capacity might not be the biggest in its class, it is ample for bedside use. Adding the low 38 to 59 decibel noise output, PARTU BS-03 will operate quietly all-day in the bedroom.

PARTU BS-03 is no doubt the undisputed value air cleaner that works on so many levels. Having a 2 years warranty will also give confidence in the product reliability despite having such a low price tag. However, it is still a basic model that has limited functionality, airflow delivery rate, and purifying coverage. You will not find any autonomous feature other than the 3 fan speed. Not suitable for a room has very bad air quality with poor air circulation. If you have insomnia because of poor lifestyle, changing that can actually do you more good than an air cleaner could.

In short: Best small air purifier for bedroom that with an low price tag and a complete 3-stage filtration. You do have to sacrifice performance and features for the portability.

± 59.99 p
     Annual filter ^    
± 50 - 75 p
 Online price*

Coway Mighty AP-1512HH is our best bedroom HEPA air purifier for allergies for a good reason. For less than $200 after discount, it is inexpensive given the airflow and filtration performance you will get. At a 16.8 inch width, 18.3 inch height, 9.6 inch depth, and 12.3 lb in weight, It is not the largest in diameter but can be cumbersome when placed in a small bedroom. The bulkier size is unavoidable in order to fit in larger filters and a huge fan. Moving to the features, you have autonomous mode, 3 preset timer that can be set to turn off the device, and a smart air quality indicator. The AQ indicator with turn blue when the air is clean, purple when air quality is at medium level and red when the air quality is bad. As for the usability, the silence operation will only output 24.4 dBA at the lowest setting and a max 53.8 dBA at high speed. You can leave the air purifier running in the bedroom all night without any disruption.

Let's jump straight into Coway Mighty specification:

  • Dimension (W x H x D) - 16.8 x 18.3 x 9.6 in
  • Weight - 12.3 lb
  • Noise Level - 24.4 - 53.8 dBA
  • Sleep Mode - No
  • Filtration - Pre-filter, True HEPA filter, Deodorization filter, Vital Ionizer

This boxy shaped device might not seem as capable as other air cleaners, is actually what's inside that counts. The advanced 4-stage air filtration that will swiftly trap indoor pollutants within its wide 326 sq. ft. room coverage. First, you have a permanent, washable pre-filter that can capture large particles like dust, fur, fiber, and hair while protecting the HEPA filter. Second, The True HEPA filter will remove 99.97% of the microscopic particles in the air as small as 0.3 microns including mold spore, pollen, pet dander, bacteria, and viruses. Third, the activated carbon filter traps toxic gases and fumes coming from cigarette, cooking, pet, household detergent. Finally, the vital ionizer will diffuse negative ions to electrically charge air molecules. The charged particles will sink due to the increased weight assisting the air cleaner for easy capture. You can switch off the ionizer via the center Ionizer button. With a standard 3 fan speeds, the official CADR by AHAM is at 246 cfm (dust), 240 cfm (pollen), and 233 cfm (smoke).

There are still more things we liked about Coway AP-1512HH. Comes in a 3 years warranty is a good assurance of the product's build quality. The annual filter replacement cost is only less than 50 dollars despite having multiple filtrations. Power consumption can be as low as 4.9 watts with Energy Saving Eco mode that will shut down the device when there is no air pollution detected for 30 seconds. The Smart Particle sensors also allow Auto mode where the fan speed will automatically set to high when nearby pollutants are on the rise. The only thing missing is the sleep mode that will lock the fan speed to lowest and dim the indicator light. Other than that, the short 6 months carbon filter lifespan and dated design can be a little bit annoying. Some users might prefer a newer released model with an updated design. All in all, when a device is already a few years old and still selling well. there is something special about it. If you have difficulty falling asleep from nasal congestion or cough, give Coway AP-1512HH Mighty a shot.

In short: One of the best air purifiers for bedroom with exceptional performance and price. Slightly bulky but comes with a genuine True HEPA filter that works well with auto mode and the ionizer.

± 222.99 p
     Annual filter ^    
± 47 p
 Online price*

The only air cleaner here that is mountable to a wall. If your bedroom is packed with children's stuff and has no space for a bulky device, this Rabbit Air MinusA2 will "fit" in nicely. At a modern square dimension of 21.4 inches width, 20 inches height, and only a depth of 7 inches, you will have no issue blending in MinusA2 as room decor. You can even swap the front panel design with a customizable one for example a Snoopy cartoon for a children's bedroom. Staying in front, there is a huge mood lighting bar that changes color from solid blue, purple to pink, and a black indicator bar panel on the right. These aesthetics features are designed to help you relax while displaying useful information. You have the option to turn it off during sleep when lights are off. As for noise and power, Rabbit Air MinusA2 will run silently between 25.6 to 51.3 decibels. You can barely hear any noise especially when the air cleaner is hanging on the wall. Being an Energy Star certified unit, it is also very energy efficient that uses only 7 watts of electricity at the lowest speed to a max 61 watts.

Here's the run-through of Rabbit Air Minus A2 superior spec sheet:

  • Dimension (W x H x D) - 21.4 x 20 x 7 in
  • Weight - 19.4 lb
  • Noise Level - 25.6 - 51.3 dBA
  • Sleep Mode - Yes (Auto)
  • Filtration - Pre-filter, Medium filter, HEPA filter, Activated carbon filter, Customized filter, Negative ion generator

Rabbit Air MinusA2 has the most complete 6-stage filtration for bedroom that traps even the tiniest microorganisms. Starting with pre-filter that blocks out large particles and protects all inner filter. With most dust and hair captured, the following medium filter will trap finer particles in the air. The finest particles that manage to bypass both filters, MinusA2 HEPA Filter will capture it all at 99.97% efficiency down to 0.3 microns. For those with asthma or hypersensitivity, you can choose either Germ Defense Filter, Pet Allergy Filter, Toxin Absorber Filter, or Odor Remover Filter to deal with specific allergens you are struggling from. Activated carbon filter will focus on adsorbing chemical fumes, ozone, and odors coming from cigarette smoke, cooking, pets. Finally, Negative Ion Generator will diffuse negative ions that stick to nearby positive ion particles. The heavier, combined particles will sink allowing easy capturing by the filter. All in all, Rabbit Air MinusA2 strong 58 to 218 cfm airflow delivery rate will cover up to 815 square footage at 2 air changes per hour. Dust free CADR stands at 193 cfm, pollen free CADR at 200 cfm, and smoke free CADR at 180 cfm.

Packed with tons of features, Rabbit Air MinusA2 comes with auto and sleep mode that will activate automatically via the trio sensors. Sleep mode with set the fan speed to low and turn off all indicator lights when the room is pitch black. Air quality indicator is also here that will shift colors from blue (good air quality), purple (moderate air quality), and red (bad air quality). Next to it, the front replace filters indicator that will remind you to change the filter when needed. Perhaps the most understatement feature of all, remote control is included so you can make any adjustment at the comfort of your bed. Rounding up the features is the comprehensive 5 years warranty that covers any defective parts.

Changing the filter is a hassle as you will need to remove MinusA2 from the wall and the 19.4 lb weight doesn't make it easier. Thankfully you only have to do this every 12 to 24 months depending on how frequently you use the air cleaner. Annual filter replacement cost is very reasonable between 43 to 85 dollars for a 6-stage air cleaning system. If money is no objection, Rabbit Air MinusA2 would be the best air purifier for bedroom. period. But at close to 600 dollars excluding the addons, it is very expensive and this could be the biggest deal-breaker. CADR is far from best but it will be good enough for bedroom use. Go with the SPA-700A variant if you don't mind sacrificing a little bit of performance for a lower price tag.

In short: Top-rated 6-stage air cleaner that removes all kinds of microscopic pollutants. Upgradeable specialized filter and customized panel design if money is no issue. Rabbit MinusA2 blends in well as home decor and will silently protect you from allergens while you are asleep.

± 599.95 p
     Annual filter ^    
± 43 - 85 p
 Online price*

Levoit might not be the biggest household name that everyone is familiar with, they do release some exceptional value model. One of them is the simple and sleek looking Levoit Core 300 air purifier. Affordable, compact yet comes a genuine True HEPA and carbon filter. No inferior HEPA-type or carbon sheet filter as a substitution despite in a compressed 8.8 inches cylinder shape body. We have no trouble finding a place to fit the air cleaner in the bedroom. Another thing that makes Levoit Core 300 great is QuietKEAP technology. Using an internal shock pad that helps reduce noise, increase abrasion resistance, and extend the life of the motor. With QuietKEAP technology, the noise level is at a low 24 decibel to a high 50 decibel at max speed. It might not sound awfully impressive, but in real life, you can really feel the quietness coming from the device.

Here are the highlights of Levoit Core 300 air cleaner:

  • Dimension (W x H x D) - 8.7 x 14.2 x 8.7 in
  • Weight - 8.8 lb
  • Noise Level - 24 to 50 dB
  • Sleep Mode - Yes (Manual)
  • Filtration - Pre-Filter, True HEPA filter, Activated carbon filter (Optional Pet allergy filter, Toxin absorber filter, mold, and bacteria filter)

Inside Levoit Core 300 core, you will find a 3-stage Vortexair Technology that uses a cyclonic airflow pattern to speed up air circulation. Complimenting the strong airflow is a washable pre-filter that can help trap dust, lint, fiber, hair, and other large irritants you will find in a typical house. Next, the inner True-HEPA filter will trap 99. 97% of fine particles down to 0.3 microns that manage to bypass the pre-filter. Finally, the Activated carbon filter will target smokes, fumes, and odors that can only be capture through chemical absorption. For those that are suffering from severe allergies, you can upgrade your carbon filter to either Pet allergy filter (for pets owner), Toxin absorber filter (for chemicals), mold, and bacteria filter (for high humidity area). With a wide 219 square feet purifying coverage and 140+ cfm CADR, Levoit Core 300 is suitable for all types of bedrooms. We find it very useful for studio or duplex home where you could cover more spaces with just one air cleaner.

Moving to usability, Levoit Core 300 is very easy to operate with a top touch control panel. Besides the standard 3 fan speed controls, there is sleep mode where the display light will be turned off running at the quietest speed. Right next to it is the timer button that can be set to turn off the device between 2, 4, 6, 8 hours. On to the other side of the controls, you have a filter reset button, display light off button, and child lock button. The child lock button is particularly useful if you placed Levoit Core 300 in a children's room and wants to prevent them from meddling on the controls. Understandably there is no autonomous mode or air quality indicator given the lack of a built-in sensor. The short filter lifespan also means you will have to change the cartridge more frequently than some models. Take nothing away from Levoit Core 300 capacity in providing you with a peaceful night sleep.

Sleeping can be a chore in today's society. In today's constant swiping and mindless scrolling in bed, you will need a good bedside air purifier that can guarantee you clean air while you lay on the bed. Levoit Core 300 may or may not affect your sleep quality, but it's good to know you will not be deprived of sleep because of bad air.

In short: A small bedroom HEPA air purifier with impressive specification at an entry-level price. One of the better choices if you don't mind the short 6 months lifespan.

± 99.99 p
     Annual filter ^    
± 20 - 40 p
 Online price*
** MRSP (Manufacturer's Suggested Retail Price)/ RSP (Retail selling price) is provided by cleanairprice.com. Accurate at the time of posting.
^ Annual filter cost is calculated based on filter price and 12 hours of usage. Pricing could vary depending on air quality, usage frequency, and speed.


Where To Place An Air Purifier In The Bedroom?

For optimal performance, an air purifier should be placed next to your bed or by the corner with 1-2 feet of gap between the wall. This will effectively shield the sleeper from any incoming germ, dust, mold, or pet dander. Placing it at the center would work as well for maximum bedroom coverage. The only concern is the device could be an obstruction as one might trip over the cable. You can learn more about the air purifier can help you achieve deep sleep by trapping all airborne irritants in the bedroom. Without those irritants triggering an allergy, you will not have to deal with a dry throat, sinus, or cough the next day in the morning. An air cleaner should be turned on 24x7 because airborne contaminants will slowly build up without you realizing it. If you are worried about the fan noise or glaring LED light, just set the fan speed to low or switch it to Auto/ Sleep mode.

Long Term Benefits Of Sleep

A night of good quality sleep is just as important as regular exercise and a healthy diet. When you have 6-8 hours of sleep consistently, the body immune system will build up thus you will unlikely to fall sick. Bodyweight will maintain in a healthy state with lowered blood pressure and cholesterol. Stroke, heart diseases, and diabetes risk are lower with enough sleep. Even injuries will recover faster because the body pumps out more blood and protein. You will also be in a much cheerful mood and concentration level will be at its peak. Stress and tension will be a thing of the past when one sleeps well. Depression will unlikely afloat because your mind is in a clearer state. Lastly, cancer and tumors risk is reduced with the creation of melatonin hormone during sleep.

As our sleep requirement decreases as we age, generally older people still need at least 7 hours of sleep. When a person is suffering from insufficient sleep syndrome, it will have a direct impact on their health. Below are the estimated hours of sleep you need per night.

  • Infants - 14 to 17 hours
  • Children 3 to 5 years old - 11 to 13 hours
  • Children 5 to 10 years old - 10 to 11 hours
  • Adolescents 10 to 17 years old - 8.5 to 9.5 hours
  • Adult - 7 to 9 hours

How Can I Improve The Air Quality In My Bedroom?

Air quality in the bedroom is way worse than the outdoor air (5 times worse to be exact). Here are a few tips that will help you achieve clean air in no time.

  1. Get a quiet bedroom air purifier with HEPA filter. The quickest way to filter out all indoor air pollutants.
  2. Keep your room well-ventilated by opening more windows and doors. This only works if the outdoor air quality is better than indoor air.
  3. Regularly maintain your air-con and HVAC system to ensure there is no dust piling up and block the airflow circulation.
  4. Vacuum, vacuum, vacuum. Dust and other settled contaminants are one of the biggest contributors to airborne particles.
  5. Dust mites often linger in the fabric, upholstery and can easily become airborne when being disturbed. Wash your bedsheets, cushion, and clothes to prevent dust mites from spreading.
  6. Get air-filtering houseplants like English ivy, snake plant, or bamboo palm. It may not be as effective as an air cleaner, it can still clean your air from CO and other pollutions.
  7. Beeswax candle, salt lamps, and essential oil are good remedies for cleaner air. They release negative ions that will bring down positive ions airborne pollutants. Your room will be filled with fragrance smell that can also alleviate asthma symptoms.

What To Look For When Choosing A Bedroom Air Purifier?

Not all air cleaners are designed for bedroom use. According to the American Psychological Association (APA), 60% of adults have difficulty sleeping every week. Picking the right model is critical as it will be a long-term investment for your well-being. You will sleep soundly at night and well-rested the next day. To guide you through the buying journey, here are the basic terminology and features you will need to know.

  1. Cost of ownership - $150-300 is our target range with annual filter cost less than $100. Some models will cost more but in return, you will get better features and performance.
  2. Room size - United States bedroom size on average is between 120 and 150 square feet. We recommend getting an air cleaner with at least 200 sq. ft. coverage at 2 air changes per hour.
  3. Pre-filter – The most common filter in every air cleaning device. This reusable filter is designed to block out dust, hair, and other large particles while prolonging the lifespan of other filters.
  4. HEPA filter - The must-have in our book. A true HEPA filter will need to fulfill the regulations set by the United States Department of Energy (DOE) to have at least 99.97% efficiency in capturing particles as small as 0.3 microns. The bedroom air purifying device chosen here must be equipped with equivalent or better filters. No settling for an inferior HEPA-type filter.
  5. Carbon filter - AKA deodorization or charcoal filter that can adsorb toxic fumes, gases, and odors. If you have an issue with smoke and odor in your bedroom, a carbon filter is a must.
  6. Noise Output - Very important as the fan noise can be a big distraction to your sleep. Choose a model that will output low-frequency white noise.
  7. Branding reputation - Since we will be running the air cleaner 24x7, reliability can be critical here. A model with a long period of warranty and good after-service support is appreciated.

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.

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