What Is Dust Allergy?
Dust allergy is an allergic reaction that causes sneezing, runny nose, wheezing, itchiness, and watery eyes when exposed. It is also a common indoor allergy associated with dust mites. Dust mites are tiny bugs (less than one millimeter) that live in house dust. We are allergic to body parts and feces of dust mites rather than dust mites itself. Dust allergies are often triggered during housekeeping where settled dust is stirred back into the air. Inhaling to these irritants will cause respiratory problems, asthma, and hay fever. There are preventive measures and treatments for dust allergies from medication, allergy shots, to vacuuming. An air purifier is one of the proven and safe ways to get rid of dust in the air. By removing airborne particles such as dust, pollen, dust mite, mold, and dander, an air purifier can alleviate allergies and congestion so you can sleep better at night.
Who is this for?People that are hyper allergic to dust or constantly experiencing stuffy nose. A dusty environment yet you spend the most time in e.g. workplace, living hall or bedroom. Newborn, infant, or children with their developing lungs. Elderly or recovering patient because of their weakened immune system . Lastly, anyone that enjoys clean indoor air with significantly less airborne dust.
Best Air Purifier for Dust Removal
The mother of all air purifiers, Blueair Pro XL is the best air purifier for dust removal for a good reason. For start, you have the segment-best dust CADR in all residential air cleaners verified by AHAM. The official Dust-free CADR is at 950 cfm, followed by Pollen free 900 cfm, and 800 cfm for smoke. That's 4 times the clean air output of a Winix air purifier. Tally with that is the excellent airflow distribution and purifying coverage powered by 3 German-engineered fans. You can expect a subtle noise level from 32 to 58 dB(A) but energy usage can be high with up to 256 watts per hour. Blueair Pro XL is ideal for large room-size e.g. offices, living hall, and kitchen but not so much on the bedroom (overqualified).
Let's look into the sweet 3-stage HEPASilent technology and its specification:
- Dust free CADR - 950 cfm
- Room Coverage - 1180 sq. ft.
- Fan Speed - 3 with Auto Mode
- Air Filtration - HEPASilent Technology with Blueair Pro Particle Filters and Pro SmokeStop Filter
- Warranty - 5 years
Blueair Pro XL powerful 990 cfm airflow delivery rate can cover a massive 1180 square feet of room space. The Trio encapsulated particle-charging chamber ionizer will charge particles that are drawn into the filtration. Particles like dust mites, pollen, pet dander, mold spore will be electrostatically charged allowing Pro XL unique trio Blueair Pro3 Particle Filter to swiftly remove a high volume of dust at 99.97% efficiency as small as 0.1 microns. For smoke particles, you have the trio Pro SmokeStop filter that can adsorb any chemical fumes and odors including radon, ammonia, CO, CO2, VOCs, and ozone. On top of it all, Blueair Pro XL filter media is made from waterproof, natural antibacterial polypropylene fibers that inhibit microbes growth. The V-shaped filter design prevents trapped contaminants from escaping due to greater depth.
One of the few air purifiers we recommend for places with high air quality index (AQI). Blueair Pro XL is the perfect machine you could get against the dustiest, dirtiest home you can find. It is also the only model in the pro series that comes with the Air Intelligence Module. With it, there is an air quality indicator and auto mode that automatically adjust the fan speed to the max when there is a high level of pollutants detected. However, Blueair Pro XL is not without some drawbacks though. The powerful airflow and high CADR is sadly reflected in the bulkiness and weight. You will not want to carry this 20 x 44 x 10 in and 71 lb device from room to room. There is also an expensive price tag and high recurring filter cost to deal with. For the price you paid, there is no Wi-Fi pairing, no autonomous mode, and timer. Unless you are staying close to an industrial area or have severe dust allergy, opt for the smaller Blueair Pro L or Pro M. Most households will be content with Blueair Classic 605 air purifier.
In short: Set aside the price tag and very expensive filter replacement cost, Blueair Pro XL is the ultimate dust removal machine that is very easy to operate. No other air cleaner can match the strong airflow with crazy high dust CADR (950 cfm!).
Your best dust removal partner for everyday vacuuming. Even though Coway AP-1512HH Mighty CADR might be miles behind Pro XL, rest assured, it is still a very practical and usable dust catcher. At a very decent price, you will get all the bells and whistles that you would expect from a good air purifier. First, you have a filter change indicator that alerts you to replace the filter is dirty or worn out. Then there is the 1, 4, 8 hours timer that can be set to turn off the device after the selected time frame. Moving to the easy to use controls, there are 2 separate HEPA and Odor filter replacement indicator that will let you know which filter needed replacing when the time is up. You also have an auto mode that will keep the fan speed at low and activate higher speed when there is an increase of pollutants in the air. Eco mode will save energy by stopping the fan when there are no pollutants detected for 30 minutes. With or without autonomous mode, the 3 fan speed will output a quiet 24.4 dbA at the lowest speed and an audible 53.8 dBA at the highest speed.
Going into Coway Mighty specification:
- Dust free CADR - 246 cfm
- Room Coverage - 326 sq. ft.
- Fan Speed - 3 with Auto Mode
- Air Filtration - Pre-filter, True HEPA filter, Deodorization filter, Vital Ionizer
- Warranty - 3 years
Standard but proven 4-stage HEPA filtration guarantee you'll have fewer irritants to worry about. The permanent pre-filter can capture speck of dust and any allergens that travel along. It is also washable and reusable thus trapped debris, dust mites, hair, dander can be easily washed away. Following that is the True HEPA filter that can trap 99.97% of microscopic particles down to 0.3 microns like dust mites, mold, mildew, pollen, and germs. For chemical fumes, tobacco smokes, cooking, and pet odors, you have the deodorization filter that can remove the smoke particles. Finally, the vital ionizer will pull contaminants down by diffusing negative ions that attach to positive ions particles. It is a safe and natural ionizing method that does not generate any harmful ozone. To complement the purification, Coway Mighty's decent clean air delivery rate comes with dust-free CADR at 246 cfm, pollen-free at 240 cfm, and smoke-free at 233 cfm. Purifying coverage is not too shabby either at 326 square feet of space. Highly suitable for a bedroom, baby room, basement, garage, or living room.
A great all-around dust air purifier that will fit into most people's budgets, there's a very little fault in this wonderful machine. For an air cleaner that can help reduce dust in the air, it is considerably small and lightweight. It is also cheap to own (less than $150) with little recurring filter cost at less than 50 dollars. One picky side, Coway Mighty is in the market for quite sometimes with certain elements feel dated. There is also the short 6 months carbon filter lifespan that is more of a hassle than a performance issue. If you want to breathe in less dust, live healthier without bearing high electricity bills, Coway Mighty is the perfect answer.
In short: An affordable yet powerful 4-stage filtration with genuine True HEPA filter, pre-filter, deodorization, and ionizer. A newer version is available with the same design but incremental improvements.
Hyper-allergic to dust mites yet been surrounded by the pesky Lil thing left to right? One pre-filter is never enough thus Airmega 300 air purifier comes with 2 washable pre-filter with one on each side. Is it a marketing gimmick? Definitely not. Airmega 300 pulls air from both sides of the air inlet so it makes sense to filter out the large particles i.e. dust first. Given there are endless dust particles in the air, the permanent pre-filter is washable and reusable for many years to come. Completing the filtration is the well-protected HEPA, carbon filter plus excellent dust CADR at 260 cfm. Allergens as small as 0.3 microns including chemical smoke and odors will be captured by the filters. Covering 1256 square feet at 2 air changes per hour, Airmega is great for all spaces including living hall, office, bedroom, and hallway. You can use it in the bedroom too as it is not overly bulky given the 13.6 x 21.2 x 13.6 in size and 21.4 lb weight.
- Dust free CADR - 260 cfm
- Room Coverage - 1256 sq. ft.
- Fan Speed - 3 with Auto Mode
- Air Filtration - Pre-filter, Green True HEPA filter, Activated carbon filter
- Warranty - 5 years
AIRMEGA 300 has many other great practical features that we did not even mention like Auto mode, real-time air quality indicator, and built-in timer. However, those features do incur an extra cost, especially in the filter department. You are looking at around 100 dollars annually to maintain the filter with at least 12 hours of runtime daily. Adding everything up, owning an Airmega 300 can be costly for the long-run. If you just want a simple dust removal machine, there are cheaper dust air purifiers in this list.
- 4-stage HEPA filtration with high 1256 sq. ft. purifying coverage.
- Tested and proven with an impressive 260 cfm dust CADR.
- Dual pre-filter that traps dust coming from both sides of the air purifier.
- Air quality display indicator, timer, auto mode all come standard.
- Still expensive even though the discounted price is cut to half (estimated).
- Lacks light-sensitive sleep mode that is available in 400 series.
One of the best dust air purifiers that cost less than 160 dollars. Winix 5500-2 air purifier is a great dust and dust mites remover at a fraction of the cost. It is on the cheaper end yet comes with a good 360 square feet delivery rate, AQ indicator, Auto mode, remote, and timer. You will also get a permanent pre-filter, a HEPA filter, an activated carbon filter, and PlasmaWave technology as standard. PlasmaWave technology can really assist in pulling down dust for the pre-filter to capture. At turbo speed, the multi-stage filtration will alleviate dust allergic reactions particularly sneezing and runny nose. With more and more dust taken down in the air, the likelihood of dust bunnies forming is dramatically reduced. You do not have to vacuum every day as there is less dust accumulation in the house from fallen dust.
- Dust free CADR - 243 cfm
- Room Coverage - 360 sq. ft.
- Fan Speed - 4 with Auto Mode
- Air Filtration - Pre-filter, True HEPA filter, AOC Carbon Filter, PlasmaWave Technology
- Warranty - 2 years
An affordable air purifier that is not so "affordable" in the filter replacement. Like most Winix models, the filter replacement set can be a hassle in the long-run. We are looking at around 80 dollars for the yearly filter cost. While no argument on the 226 cfm airflow delivery rate and 243 cfm dust CADR, there are more cost-effective options like 5300-2 if you don't mind dropping a few features. Winix 5500-2 also not the most silent air purifier out there, but given its size and dust removal capability, we have no issue recommending one.
- Again less than $150 for a full 4-stage filtration with PlasmaWave technology.
- Decent dust CADR output supported by a 360 square feet coverage.
- Permanent pre-filter works exceptionally well with the True-HEPA filter in capturing dust elements.
- Remote control, timer plus auto/ Sleep mode with light sensor.
- Slightly expensive annual filter replacement.
The model that needs no introduction and best air purifier for dust mites. Honeywell HPA300 has also crowned the best bang for the buck HEPA air purifier for a good reason. It has high dust CADR, wide purifying coverage, and the best bit of all, it's inexpensive to own. For less than 250 after discount, HPA300 can cover up to 465 sq. ft. room size with certified 320 cfm dust free CADR, 300 cfm pollen free CADR, and 300 cfm smoke free CADR. Supporting the strong airflow performance is the dual function carbon pre-filter. The filter sheet can capture large particles and odors like dirt, dead skin, pet dander, hair, fabric fiber, dust mites, dead insects, mild smoke. Then there is the all-important True HEPA filter that captures ultra fine particles as small as 0.3 microns with up to 99.97% efficiency. Compare with similar range models, HPA300 is less bulky than most air purifiers for dust here. The 20.8 x 22.4 x 10.8 in dimension is perfect for in-studio, apartment, or bedroom with limited room size.
- Dust free CADR - 500 cfm
- Room Coverage - 775 sq. ft.
- Fan Speed - 3
- Air Filtration - HEPASilent Technology with Particle Filters and SmokeStop Filter
- Warranty - 5 years
Honeywell HPA300 is also cost efficiency and silent even though it has an impressive purifying coverage. However, it is not without some flaws. The major fallback is the non-washable carbon pre-filter that will incur some cost. Unlike a washable pre-filter that is reusable by washing away collected dust, you will have to replace the filter every quarterly. The lack of premium features like Auto mode, Sleep mode, AQ sensor, and the indicator is also a big bumper. On a brighter note, there will be less dust build-up in the house and you do not need to vacuum regularly with Honeywell HPA300 around.
- Less than $150 for a solid 3-stage air purifier with True HEPA filter.
- Greatly exceeded our dust CADR output at 320 cfm.
- Super wide 465 square feet coverage.
- Carbon Pre-filter that can capture dust and smoke at the same time.
- Lacks all the premium features like Auto/ Sleep mode, and air quality indicator.
- Filter replacement set can be costly on 24 hours operation.
Most GermGuardian air purifiers offer attractive prices with some compromisation on performance. GermGuardian AC9200WCA is not your typical tower air purifier from the brand. For the price around 300 after rebate, this is the best air purifier for dust removal that is still accessible. The high airflow performance can deliver up to 310 cfm dust CADR with a decent 378 sq. ft. purifying coverage for large room size equivalent. To complimenting on airflow delivery rate, you will need a good set of filters and AC9200WCA does not disappoint. It comes with a permanent pre-filter, HEPA filter, Ionizer, and germ-killing UV-C light. The 5-stage filtration will remove dust and allergens in the air while the UV-C light will permanently remove any bacteria and viruses. Adding an ionizer that releases negative ions to pull down dust particles, this is the perfect machine to counter a dusty home.
- Dust free CADR - 310 cfm
- Room Coverage - 378 sq. ft.
- Fan Speed - 4 with Auto Mode
- Air Filtration - Pre-filter, True HEPA filter, Activated Carbon Filter, Ionizer
- Warranty - 3 years
GermGuardian AC9200WCA is one of the most underrated, best air purifiers for dust and allergies that are not outrageously expensive. Filter cost is another story as you will have to replace everything except the ionizer and pre-filter. Other drawbacks include the bulky size, the lack of air quality indicator, and Auto mode where it is available in some of the cheaper models. Overall, AC9200WCA might have a few insignificant cons, there is no doubt on its dust filtration capability. If you want an air cleaner with a large pre-filter that can trap more dust mites at one go, look no further.
- 5-stage filtration including a UV-C light filtration.
- Strong airflow delivery with up to 310 cfm CADR.
- Respectable 378 square feet purifying coverage.
- Permanent pre-filter that captures dust while protects the HEPA filter from large particles.
- Around $100 dollars more expensive than most air purifiers here.
- Surprisingly, AQ indicator and Auto mode are omitted from the spec list.
- High filter replacement cost if you account for the UV-light.
2020 Best Air Purifier for Dust Removal
|Air Purifier||Online Price (Amazon)||Dust & Dust Mites||Filtration||Coverage||Score|
|Blueair Pro XL Air Purifier|
|Best||3-stage||1180 sq. ft. (110 m2)||9.5|
|Coway AP-1512HH Mighty Air Purifier|
|Great||4-stage||326 sq. ft. (30 m2)||9.3|
|Airmega 300 Air Purifier|
|Great||4-stage||1256 sq. ft. (117 m2)||9|
|Winix 5500-2 Air Purifier|
|Great||4-stage||360 sq. ft. (33 m2)||8.5|
|Blueair 605 Air Purifier|
|Best||3-stage||775 sq. ft. (72 m2)||9|
|GermGuardian AC9200WCA Air Purifier|
|Best||5-stage||378 sq. ft. (35 m2)||8|
What Is The Use of Pre-filter In A Dust Air Purifier?
Pre-filter is the first-stage filtration of an air purifier. It is used to blocks out large particles like dust, hair, and debris. Pre-filter can also protect the inner filters from getting clogged by foreign particulate matters. It can also extend the HEPA and carbon filter's lifespan from being damaged. Pre-filter is typically made from the pleated panel, wool, fabric mesh, and steel mesh. Regardless of the air purifier types, almost every model comes pre-fitted with a washable pre-filter.
Where To Place An Air Purifier For Best Dust Removal?
You should place an air purifier in the room where you spend the most time or needed air cleaning. Typically it will be in the bedroom as it is the dustiest due to the limited space and dirty vent. In any case, you can still move the air purifier to other places like the living room during binge watch. Just make sure to leave 1-2 feet of space between the wall or sofa so that the airflow does not get impeded.
Do You Leave Air Purifier On All Day To Reduce Dust?
You should leave the air purifier on all the time as there are neverending dust particles in the air. Air purifier runtime is very important in determining the efficiency of air cleaning. It takes a few hours for an air purifier to clean the room and the dust particles will gradually buildup when it's off. If you are worried about energy consumption, you will be glad to know that an air purifier uses power similar to a laptop. So just leave the air purifier running all-day and set it to low fan speed or in Auto/ sleep mode.
Will An Air Purifier Make My House Less Dusty?
An air purifier with HEPA filter will make your house less dusty as is it designed to remove dust. A standard HEPA (High Efficiency Particulate Air) filter can remove 99.97% of the airborne particles as small as 0.3 microns. With an air purifier running in the background, there is less dust in the air therefore less cleaning is needed in the house. Take note though an air purifier cannot remove dust particles that are sitting on surfaces like furniture, carpet, bedding, or wall. You will still need to do housekeeping to remove the settled dust.
What Is The Best Air Purifier To Remove Dust?
The best dust air purifier in the market is Blue Air Pro XL. It is the undisputed, highest-rated dust removal air purifier with a class-leading 960 cfm dust CADR. Utilizing a HEPA Blueair Pro Particle filter to trap dust and 99.97% of the microscopic particles as small as 0.1 microns. On the flip side, Blue Air Pro XL air purifier is very expensive and not everyone is willing to spend so much money on it. If you are on a tighter budget, consider other alternatives in our best air purifier for dust removal list.
Other types of filters you may find in a dust air purifier:
- 2-in-1 pre-filter - Like a normal pre-filter but comes with extra carbon sheet. It is designed to block large irritants like dust plus mild smoke and odors. 2-in-1 pre-filter is not washable and has to be replaced when it is worn out.
- True HEPA filter - A high standard filter that captures 99.97% of the airborne particles as small as 0.3 microns. This includes mold, pollen, bacteria, and viruses. HEPA filter must be made according to the strict regulation set by the United States Department of Energy (DOE). All True HEPA filters are not washable and must be replaced when necessary.
- HEPA-type filter - A lower grade version to True HEPA filter. HEPA-type filter captures 99% of the airborne particles as small as 2 microns. Typically, you will find HEPA-type filter in an affordable air purifier that costs less than 100. Some permanent HEPA-type filters are washable so go through the manual before proceeding.
- Activated carbon filter – A non-washable, deodorizing filter that focuses solely on capturing gases and odor via chemical absorption. The perfect complement to the existing HEPA filter.
- Ultraviolet light (UV) - Use invisible electromagnetic radiation to sterilize bacteria and viruses. UV light is a proven and 100% safe technology that works well with any mechanical filter.
- Ionizer - AKA negative ion generator. By dispersing millions of negative ions into the air, the (-) ions will merge with (+) positive ions particles. The combined ions will then drop due to the heavier weight and an air purifier can pick up all the irritants. Take note that ionizer is not an ozone generator despite some manufacturer would attempt to market as one.
Do Air Purifiers Remove Dust?
An air purifier will be able to get rid of airborne dust in a room before they settle down. Most dust particles are between 2.5 to 10 micrometers in size with human hair at 60 to 100 micrometers. An air purifier will only need a pre-filter to trap large dust particles into its filtration. HEPA filter is optional as even a low-grade 1-8 MERV would be able to do the job. An air purifier works by cleaning the air from nearby dust allergens and toxins. Air will be drawn into the filtration through the internal fan. The multiple filters will then capture the contaminants and circulate purified air back to the room. As there is dust everywhere, the cleaning cycle will continue until you disable the air purifier. You will feel gradual improvement in the home air quality, breathe better while experiencing fewer allergies.
What Is House Dust Made Of?
Domestic dust AKA house dust comprises of many tiny particles from hair, pet dander, textile fibers, paper fibers, skin flakes, and food particles. The type of dust produced indoor highly dependent on the location and the exposure. A house with cats has dust that contains cat hair and dander than a house with no pets. Again, a house located close to nature has more pollen dust than an urban area. Still, around two-thirds of dust contains outdoor pollutants such as dirt, pollen, and soot. Dust and other airborne substances are the main cause of all year round allergic rhinitis.
In short, house dust is not just made of grey dirt and human skin cells that settle on surfaces. It contains various bits of accumulated pollutants in the house.
- Soil/ debris
- Outdoor particulate matters
- Organic matter
- Mold, mildew, pollen
- Cigarette smoke remains
- Dead skin
- Hair, pet hair
- Paper fibers
- Pet dander
- Dust mites
- Insects feces
Do Air Purifiers Get Rid of Dust Mites?
An air purifier will effectively remove airborne dust mites that trigger skin allergies. Air purifier will also reduce dust mites by removing its food sources e.g. dead skin cells, dander. Dust mites are microscopic creatures that are related to the spider. They thrive in warm, humid weather and feed on flakes of dead skin. Even though dust mites don't bite, it can cause skin rashes and trigger allergies and asthma. An air purifier will pull dust mites in the air to its filtration through an internal motor fan. The high density of the HEPA filter will trap dust mites and other allergens so only clean air will be released out. Without the microbes irritating the respiratory, dust mite allergy would not be triggered and you will breathe better. If the dust mites have settled in the bed, pillow, mattresses or upholstery, there is nothing an air purifier can do.
Why Does My Bedroom Get So Dusty?
Loose fibers, dust mite, skin cell, mold plus the lack of open-air windows and room space is the main reason for a dusty bedroom. Most bedrooms are small yet occupied by a bed, drawer, and wardrobes. The lack of ventilation means dust will easily pile up on top of a cabinet surface, shelf, garments, and underneath a bedframe. A dirty air conditioner and heating system are also one of the reasons for a dusty bedroom. This is because the filters are clogged from constant usage allowing dust to spread across the room with ease.
As for the types of dust in the bedroom, bedding and paper fiber are very common dust components. This is because clothes, towels, undergarments, children's books, and magazines all contain fibers. The thin fibers will break down from eventual wear and tear to create a speck of dust. Also in the list is excessive skin flakes and hair follicles that naturally fall from our bodies. With countless of hours we spend in our bedroom every day, these dust particles will eventually become dormant, settled on the ground or stirred back in the air when disturbed.
How To Reduce Dust In House
Dusty home can be irritating and creates an unhealthy environment for the occupants. While an air purifier can make a big difference, you will still need to do house chores to reduce the overall exposure. Dust pile up quickly on hard to reach places like a top-shelf, fan blade, and gaps at the back of a cabinet. Here are some great dust reduction tips that will make cleaning an easy chore.
- Get more than one air purifier – An air purifier really works in reducing dust but even the best air purifier can only cover so much. If you have dust problems in multiple rooms or different floors, you will need at least 1 air purifier for each room. That way clean air can distribute evenly across the hallway and living hall.
- Clean air filter - You will be surprised how fast dust will spread in the air with a dirty filter. Filters from ventilation, HVAC, air conditioner, and air purifier requires cleaning regularly. A filter can be clogged or broken if is not well-maintained. If the ducts have punctured, replace or repair it to prevent dust from escaping. Check the manual on the filter's intermittent maintenance.
- Vacuum daily with a HEPA vacuum cleaner - Whether it is a console, handheld, or stick vacuum, if it can suck, is good enough for us. So vacuum thoroughly at every cover of the room including hard to reach places and carpet. That's where dust bunnies are born.
- Change your bedding regularly – If you wake up with a nasty rash or itches, there could be dust mites in your bed. Change or wash your bed sheet, pillows case regularly to kill off dust mites and remove loosen fiber. Consider switching to hypoallergenic covers for better dust mites protection.
- Organized your home clutter – Hide garments, clothes, and towels inside a drawer or cabinet to avoid dust collection. Store away toys, books, or gadgets into a box rather than leaving them exposed.
- No indoor pets if possible - Dogs and cats will also contribute to dust through shed hair, pet dander, ticks, and dirt. If the furry one must stay, groom them daily so there's less flaky skin in the air.
- Avoid carpet and faux – Try not to get one as carpet is one of the dustiest and dirtiest items in a household. You should vacuum it more often or wash it in a washing machine if possible. Alternatively, bring it outside for beating by draping it on a ledge or gate. That way, all the dust particles will be released outside far away from your home.
- Clean or change the filter – Filter found in an air conditioner or ventilation system has a usage lifespan. When the filter is dirty, wash, vacuum or replace it accordingly.
- Never use feather duster - It might seem effective, but it just moves dust from one place to another. Use a damp cloth instead and start wiping from top to bottom.
How to Choose the Best Air Purifier for Dust
Is always good to have an air purifier running in the background when you are dusting or vacuuming. It can capture dust particles before they settled on the furniture, shelf, wall, and floor. However, some air purifier requires greater effort in removing dust because of its limited capacity. You will have to factor in the filtration set, price point, reliability, and usability when choosing an air purifier. So rather than following blindly to our recommendation, here are the key features you need to look into when buying the best air cleaner for dust.
- Filtration stage - To be the best air filter for dust, you will need at least 3-stage filtration. This includes a pre-filter, a HEPA filter, and a carbon filter. Never settle for less and any addon filtration such as Ionizer, UV-light is welcome.
- Warranty - Do not settle for a model that does not come with a warranty. Most air purifiers come with a 1-5 year warranty that covers the workmanship and motor parts. Brands such as Alen covers a lifetime warranty that gives you the longest worry-free ownership. So check how responsive is the customer service and where is the nearest service center in case repair is needed. Remember to go through what does the limited warranty covers as every manufacturer has a different interpretation.
- Airflow speed - Consider the number of fan speeds and airflow delivery rates. We talked about the importance of dust CADR and purifying coverage, Airflow output is also a very important factor. The higher the airflow delivery rate, the more air will be pulled into the air purifier. With more air that has gone through the filtration, the quicker clean air can be achieved. Anything lower than 200 cfm should not be considered when choosing an air cleaner for dust.
- Cost of ownership - A good dust air purifier will cost you at least 150 and above. If you go for the top tier model, the price can go all the way up to 2000. The same goes for the filter replacement cost. There will be a recurring cost starting from 100 dollars annually depending on the filter grade. if the filter set comes with a HEPA filter, carbon filter, UV-light, expect to fork out even more.
- Dimension - Dust air purifier can be pretty bulky and heavy given there is so much dust to capture. Knowing where you want to place an air purifier can help you decide what air purifier to get. If you plan to use it in a bedroom or a small studio, a smaller but less powerful air purifier will be the better option.
- Noise level - The more powerful the air purifier is, the more noise the motor fan will generate. Most air cleaner will have a noise output not more than 60 dB. But if you plan to use the air purifier during sleep or during work, go with a model that has the lowest noise output. The availability of sleep mode is a good gauge on how silent a dust air purifier can go.
- Power consumption - Most air purifiers have a pretty low power usage despite some might suggest otherwise. That said, leaving an air purifier running 24x7 will increase the electricity bill ever so slightly. If you are particularly on energy usage, pick a model that is Energy Star rated.
- Auto mode - Relies on the dust or particle sensor for autonomous operation. With Auto mode enabled, the air purifier will only increase the fan speed when a high volume of dust is detected. Otherwise, it will remain at the lowest speed.
- Sleep mode - Relies on the light sensor for auto-activation. With Sleep mode enabled, it will dim the indicator light and lock the fan speed to the lowest for minimal fan noise. Perfect for bedtime use with a night of uninterrupted sleep.
- Timer - Having good air filters for dust will not help with the usability of an air purifier. A timer allows you to set a specific time for the air purifier to turn on or off to help better manage the operational time.