|BEST BUDGET||BEST OVERALL||BEST PERFORM-ANCEPERFORMANCE|
|LEVOIT Core 300 Air Purifier||Alen BreatheSmart 45i Air Purifier||Medify Air MA-40 Air Purifier|
|Recommended Room Size|
|219 sq. ft. (20 m2)||800 sq. ft. (74 m2)||840 sq. ft. (78 m2)|
|4.5 ⭐ out of 5||4.2 ⭐ out of 5||4.5 ⭐ out of 5|
How Do We Measure?
An H13 HEPA filter is not the only thing to consider in a medical-grade air purifier. As air cleaner comes in many shapes and forms, it makes sense that some models will be more efficient than the others. To help you choose the best out of the best, here are things you will need to go through before investing in one.
- H13 HEPA filter - A certified performance that captures ultrafine particles in the air. A must-have in mechanical filtration setup. Never settle with a HEPA-type filter or less.
- Other filtration - Anything from a deodorizer carbon filter, pre-filter, UV-light, and ionizer would be a welcome addition. The more in-depth the filtration, the more airborne particles will be capture.
- Room size - Go with a model that delivers a higher or equal purifying range to your room size. Refer to the manufacturer's recommended room size as a guideline or calculate the airflow capacity based on the CADR.
- Clean Air Delivery Rate (CADR) - A measurement by AHAM on the volume of clean air removed by an air cleaner. The higher the CADR output, the more clean air will be released per hour.
- Features - Cherry-pick the features you need and choose a model that offers that. Common but useful features include auto/ sleep mode, timer, nightlight, child lock, remote control, and Wi-Fi support.
- Noise level - Between 20 to 49 decibels is the sweet spot for everyday use. Anything higher would be categorized as white noise that may or may not work for you.
- Pricing and maintenance - Don't bite off more than you can chew. Besides considering the selling price, there will be recurring costs for the non-washable H13 HEPA filter. So set a budget you're comfortable with as you will be paying for it for years to come.
An award-winning, budget medical-grade air purifier for under 100 dollars. LEVOIT Core 300 H13 HEPA air purifier is the top seller in its lineup. Designed in South California that emphasis on a modern approach, the cylinder body is very compact at 8.7 x 14.2 x 8.7 inches. Adding the 8.8 pounds weight, you will have no issue finding a spot to place it or move it around for room to room purifying. Build quality is exceptional with abrasion-resistant materials and a high-precision bearing AC capacitor motor. It will withstand daily operation with no hiccups at all.
A versatile, low price H13 air purifier with decent filtration. Great starter air purifier for most households.
Comes in black or white, LEVOIT Core 300 H13 air purifier low price tag is the perfect gift for anyone that needs clean air. It is very easy to use with clearly defined controls. You have the standard 3 speed plus a 2, 4, 6, 8 hours preset timer. A filter life indicator is also present that alerts you to replace the filter when necessary. Last but not least, the child lock feature prevents children from altering the setting. For 24 hours of operation, the 45-watt max power consumption will not burden much on your utility bill. After all, Levoit Core 300 is an Energy Star Certified model.
Here is LEVOIT Core 300 specification:
- Filtration - Pre-Filter, H13 True HEPA filter, Activated Carbon Filter
- Room size - 219 sq. ft.
- Dimension (W x H x D) - 8.7 x 14.2 x 8.7 in
- Weight - 8.8 lb
- Warranty - 2 years
LEVOIT Core 300 uses a 100% mechanical, ozone-free medical-grade filtration. When air is drawn inside, the pre-filter will block large particles like dust, hair, dirt, and lint from passing through. The shielded H13 True HEPA filter will capture 99.97% of ultrafine particles like mold, pollen, fungi, germs, and bacteria. For smoke and odor, the granular activated carbon filter is there to neutralize it. There is also the option to upgrade to the following filter: Pet Allergy Filter that is effective against pet allergens, diapers, Toxin Absorber Filter that deals with air pollution like wildfire, vehicle exhaust, VOCs, or MB Filter that trap and impede microorganism growth.
LEVOIT Core 300 unique VortexAir technology output a mid-range 219 square footage at 5 air changes per hour. Ideal for room spaces like bedroom, office room, nursery home, walk-in wardrobe, kitchen, and basement. With the swift 12 minutes cyclonic airflow system output, CADR is rated at 140 cfm for dust, 145 cfm for pollen, and 141 cfm for smoke. Noise output is very subtle and suitable for night use. The QuietKEAP technology comes with an internal shock pad that absorbs excess noise. By selecting Sleep mode, the noise level is locked at 24 dB with indicator lights turned off.
Fundamentally LEVOIT Core 300 H13 is a small air purifier with limitations bound to it. First off, the lack of a sensor means there is no air quality indicator and auto mode built-in. The filter's surface area is relatively small so the filtration performance is limited. The short 6 to 8 months filter's life also contributes to the woes and has to be replaced on time. That said, the quickest solution to all that is to get a bigger unit with a better output when there's room to spare.
In short: A versatile, low price H13 air purifier with decent filtration. Great starter air purifier for most households.
- Medical-grade H13 HEPA filter.
- Affordable to own and maintain.
- Compact, silent with decent output.
- Granular Activated Carbon Filter.
- Addon filter (Pet Allergy, Toxin Absorber, MB).
- Sleep mode, child lock, timer.
- No built-in sensors, auto mode.
- Small filters.
±99.99 $$/ 7
(annual filter cost ±20-40)
A stark contrast to the compact medical-grade air cleaning machine out there. Alen BreatheSmart 45i has a conventional console size of 17.8 x 26.8 x 10 inches. It is big but still usable for most home sizes even with limited spaces. The 21 pounds weight is on the heavier side but you could still move it around by grabbing onto the back handle. True to the BreatheSmart setup, the air inlet is located at the sides with an air outlet at the top. Overall, build quality is excellent as you would expect from a brand that offers a lifetime warranty.
A premium air purifier equipped with a top-grade H13 HEPA filter. For complete filtration, opt for any one of the filter upgrades.
Alen BreatheSmart 45i air purifier is highly customizable. The front panel can be swap with a variety of colors and designs to suit your home decor. At the top, the air quality indicator illuminates blue when air is clean, yellow when moderate, and red light when air quality is bad. Control-wise, you can choose how to run the machine based on your lifestyle. Either manually select the 4 fan speeds or leave it in auto mode and let the air purifier decide the speed based on surrounding air quality. You can also activates or deactivates the ionizer, child lock, and set up a shut-down timer to limit the runtime. Lastly, an advanced Smart Filter accurately calculates the filter life based on usage volume so you will only have to replace it when it is dirty. Energy usage is on the high side between 64 to 105 watts hourly. You can bring it down slightly by running it exclusively in auto/ sleep mode.
Into the specification:
- Filtration - Pre-filter, HEPA-Pure Filter, Ionizer
- Room size - 800 sq. ft.
- Dimension (W x H x D) - 5 x 25 x 8.5 in
- Weight - 15 lb
- Warranty -Lifetime warranty
Alen BreatheSmart air purifiers are always known for their strong medical-grade filtration. The all-in-one filter comes with a washable pre-filter that traps large particles and protects the HEPA filter from getting clogged. The H13 HEPA pure filter will freely remove 99.97% of airborne particulates as small as 0.1 micrometers. You can choose to upgrade it with HEPA-Silver filter to deal with musty mold and mildew infestation. Otherwise, upgrade to the HEPA-FreshPlus or HEPA-OdorCell filter for better odor and chemical fume removal. The last stage ionizer generates negative ions that bond with positive ions pollutants in the air. The bonded ions will fall from the increased weight allowing the air purifier to pull in for the filter to capture.
Pairs well with Alen's SmartSensor technology, Alen BreatheSmart 45i is suitable for a room size up to 800 square feet with a max airflow of 190 cfm. CADR is around 245 cfm for dust, pollen, and smoke which matches the airflow delivery rate. You can use it virtually anywhere in the home from the living room, bedroom, playroom, study room, basement, to the tandem garage. The 42-56 dB noise output with WhisperMax technology is tuned to play pink-noise frequency that can help improve sleep. However, it is not for those that don't enjoy having consistent background noise while they work or sleep.
The price tag is the Alen BreatheSmart 45i air purifier biggest setback. Not only the selling price is 3 to 5 times higher than some H13 HEPA air purifiers here, you will also need to bear the high filter recurring fees. There are other addons like filter upgrades, customized panels that could drive up the cost but not substantially. If you can afford to own one, the optional cost is not a big deal.
In short: A premium air purifier equipped with a top-grade H13 HEPA filter. For complete filtration, opt for any one of the filter upgrades.
- H13 HEPA filter/ 0.1 microns.
- Very wide purifying coverage.
- Upgradable filter (Silver, OdorCell, Fresh).
- Auto mode, child lock, timer.
- Optional ionizer.
- Lifetime warranty (with subscription).
- Expensive (+- 460).
- No carbon filter by default.
±468.00 $$$$$/ 7
(annual filter cost ±39-118)
A higher range model for those that are living in a highly polluted environment. Medify MA-40 air purifier is always known for its medical-grade HEPA filter. The flat boxy design comes in at 9.9 inches width and tall 22 inches height. Not the biggest framework yet manage to fit in large filters without affecting usability. The air inlet will draw air from the ground so it is suitable for floor placement. Moveability is also good due to the lightweight 15.6 pounds. You can easily carry it around for room-to-room purification. On the whole, Medify MA-40 is well-built with no signs of poor workmanship or off-gassing. It is officially ETL certified, CARB compliant, and protected with a long lifetime warranty exclusively from the manufacturer.
One of the best medical-grade HEPA air purifiers that are perfectly balanced between cost and performance. Go with this if you can afford the recurring filter cost.
Adding to the premium touch, the top tempered glass control panel host all the key functions. You can make quick 3 speeds adjustments, enable/ disable the ionizer, and dim the indicator light to reduce glaring during nighttime. The filter replacement indicator will alert you to replace the filter after 2,500 hours. You can also set the 1-8 hours timers to conserve energy. Speaking of energy, Energy Star Certified Medify MA-40 consumes 54 watts per hour. Considerably energy efficient given its strong output yet without the help of autonomous mode.
Into Medify MA-40 specification:
- Filtration - Pre-filter, H13 True HEPA filter, Activated Carbon composite filter
- Room size - 840 sq. ft.
- Dimension (W x H x D) - 9.9 x 22 x 10.9 in
- Weight - 15.4 lb
- Warranty - 2 years
Constantly fall sick from airborne germs and viral viruses? Medify MA-40 air purifier 4-stage medical-grade filtration can help curb down the spread. The dual pre-filter traps dust, hair, and other larger contaminants while protecting the HEPA filter from clogged. Next, the dual H13 HEPA filter traps 99.9% of ultrafine particles as small as 0.1 microns like mold, mildew, pollen, germ, bacteria, and virus. The activated carbon filter with carbon pellets absorbs chemical fumes and odors e.g. tobacco smoke, VOCs, asbestos, radon, formaldehyde. The ionizer discharges millions of negative ions that latch to positive ions airborne pollutants. This causes the pollutants to drop for the HEPA filter to capture.
Best used in the living room, garage, basement, nursery room, bedroom, or even an entire home as long as you kept the door wide open. The higher variant Medify MA-40 comes naturally with a stronger airflow circulation. It will reach up to 840 square footage at 2 air changes per hour (30 minutes). You can double the airflow output by increasing the air changes per hour to 4 or every 15 minutes at the cost of smaller 420 square footage. Ideal of an asthmatic or hypersensitive person that needs constant clean air. The clean air delivery rate is at 150 cubic feet per minute for dust, pollen, and smoke. Not bad considering the dense H13 HEPA filter would have reduced the airflow distribution. Noise level is on the higher side averaging at 46 to 66 decibels. Usable as long as you kept it at a lower speed or placing it further while you work/ sleep.
There are 2 things that the air purifier falls short of. First, the short 6 months filter lifespan can be annoying as you will have to replace it more often than you would normally would. The double filter replacement cost also increased due to the larger set. If you are not into paying 60-120 dollars annually, the smaller variant could be better suited to you.
In short: One of the best medical-grade HEPA air purifiers that are perfectly balanced between cost and performance. Go with this if you can afford the recurring filter cost.
- Powerful medical-grade HEPA air purifier.
- 2x H13 HEPA filter.
- 2x activated carbon filter.
- Optional anion generator.
- Timer, child lock.
- Lifetime warranty.
- High recurring cost (2x).
- No sensor, auto mode.
±349.00 $$$$/ 7
(annual filter cost ±60-120)
A more affordable medical-grade air purifier with little compromisation. Medify MA-15 H13 air purifier stands at a small 9.7 inches diameter and 15.5 inches height. Highly suitable for desk use, cabinet, or bedside with its compact body and short height. The light 6.6 pounds makes it the perfect room-to-room air purifying machine. There is a bottom air inlet for ground pollutants removal and a top air outlet for clean air distribution. Available in white, silver, and black, you cannot go wrong with any of Medify MA-15 air purifier color options.
A more affordable alternative that still uses the same medical grade H13 HEPA filter. You do have to bear the high filter replacement cost like its predecessor.
Moving to the controls, there are the 3 adjustable speeds that can be toggle according to your needs. There is also a useful timer that can be set to shut down the air cleaner when you're leaving for work. Other supporting features include a child lock function that locks the control from any unintended alteration and a filter change indicator reminder. Overall, build quality is up there with the higher variant that produces no harmful byproducts or off-gassing. The underrated lifetime warranty will cover any manufacturing defects throughout the course of ownership.
Moving into Medify MA-15 specification:
- Filtration - Pre-Filters, HEPA H13 filters, Activated Carbon Filters
- Room size - 330 sq. ft.
- Dimension (W x H x D) - 9.7 x 15.5 x 9.7 in
- Weight - 6.6 lb
- Warranty - 2 years
No dirty air is able to bypass Medify MA-15 4-stage medical-grade filtration. The outer pre-filter captures large particles like dust, hair, lint from passing through. The protected H13 HEPA filter can now focus on removing 99.9% of microscopic particles as small as 0.1 microns including bacteria and viruses. The carbon filter with carbon pellets in return removes cooking odors, cigarette smoke, VOCs, and smelly pet from stinking up your home. Finish it off is an anion generator that emits negative ions to pull airborne particles down for the H13 filter to capture.
The compact Medify MA-15 air purifier comes with a tuned down 330 square footage coverage at 2 air changes per hour. For an allergenic person that needs 4 air changes per hour or clean air every 15 minutes, the coverage is further dropped to 165 square footage. CADR is limit to 150 cfm output for dust, pollen, and smoke. Suitable for bedroom, dorm, office desk, hallway, or any small room size. On the better end, Medify MA-15 runs silently betwen 35 to 51 dBA noise output. You can leave it next to the bedside while you sleep soundly at night. Power consumption is averaging at only 18 wattages per hour. Ideal for 24 hours operation with little impact on your electricity bill.
While Medify lacks a sensor, air quality indicator, and auto mode built-in, The high filter cost should be your biggest concern. The short filter life has to be replaced every 3-4 months or 2,500 hours. Adding the long operational hours and a less than ideal home air quality, the annual cost could go as high as 140 dollars. If you need a more price-friendly approach, there are other more cost-effective HEPA air purifiers out there.
In short: A more affordable alternative that still uses the same medical grade H13 HEPA filter. You do have to bear the high filter replacement cost like its predecessor.
- Budget-friendly H13 HEPA air purifier.
- Compact machine with decent airflow.
- Dual HEPA and carbon filter.
- Anion generator.
- Timer, child lock.
- Lifetime warranty.
- High filter recurring cost.
- Lacks auto mode.
±119.00 $$$/ 7
(annual filter cost ±70-140)
Do not be fool by Okaysou AirMax8L low price tag. It is indeed a 5-stage medical-grade air purifier. The air cleaner manages to house an entire filtration through its 2.9 x 19.4 x 7.1 inches console-setup body. Another strong suit is the clean, white exterior support full air inlet and outlet where more air can be drawn in at one go. While it is not light at 13.7 pounds, you will have no issue using it in multiple locations with the grippy handle. Overall, the build quality is good despite the lack of premium touches. The 5-year warranty with US-based customer support is a rare perk at this price point.
An inexpensive medical grade H13 air purifier with strong performance and Ultra-Duo filters. Recommended for those new to the air purifier scene.
Okaysou AirMax8L air purifier is easy to use that comes with a whole set of features. You have the standard 3 fan speeds that cycle between efficiency or performance. A 4 preset timer is also present that needs no explanation. The same goes with the Child lock function that is very useful for those that have little ones at home. An intelligent filter replacement indicator will alert you to replace the filter after an interval time. Finally, a manually select Sleep mode is available that disable all indicator lights and lock the speed at the lowest. The only thing missing here is auto mode but that shouldn't come as a surprise given its price tag.
Here is Okaysou AirMax8L specification:
- Filtration - Pre-filter, H13 True HEPA filter, Active carbon filter, Antibacterial, Cold catalyst
- Room size - 320 sq. ft.
- Dimension (W x H x D) - 12.9 x 19.4 x 7.1 in
- Weight - 13.7 lb
- Warranty - 5 years
Okaysou AirMax8L H13 air purifier is proven to be effective at removing allergens and odors. The fine preliminary filter traps PM10 particulates mainly dust so it will not damage the HEPA filter. The top-tier H13 HEPA filter capture 99.97% of microscopic particles as small as 0.25 microns including pet dander, mold spore, and airborne germs. On top of that is an antibacterial filter that inhibits trapped microorganisms from growth and escaping. For smoke particles and toxic fumes, you have the carbon filter and cold catalyst filter standing by. The combination filter will remove household odors from cooking, cigarette, pets, diaper to chemicals from paint, fireplace, and outdoor pollution. No UV-light or ionizer insight as it runs purely on mechanical filtration.
Nothing but praises for Okaysou AirMax8L airflow delivery rate and purifying coverage. Its recommended room size is at a wide 800 square footage at 1.5 air changes per hour. Drop it to 500 square footage with 3 air changes per hour or a lower 320 square footage with 5 air changes per hour. Use the latter when you constantly fall sick or suffer from nasal congestion. CADR is equally impressive too at 210 cubic feet per minute, which passes our 200 cfm benchmark. Suitable for all room sizes with less than ideal room air quality.
The perfect all-nighter air purifier. Okaysou Silenceboost technology combines well with a 45 vanes turbine Motor. On everyday use, the noise level is only at a whispering 22 dBA to a max 51 dBA speed. Just switch it on to sleep mode before you hit the sack and the air purifier will run anonymously in the background. Energy consumption is at an average of 50 watts with AC 110V/ 60Hz output. Decent but not the most efficient unit around.
As mentioned earlier, the lack of auto mode and air quality indicator is something we would accustom to at this segment. The short 6-8 months lifespan is also expected given the filters' small surface area. Okaysou is also not a household brand that would cross people's minds when they think of an air purifier. Other than the few minor complaints, is hard to find faults in this well-made H13 air purifier.
In short: An inexpensive medical grade H13 air purifier with strong performance and Ultra-Duo filters. Recommended for those new to the air purifier scene.
- Affordable H13 HEPA air purifier.
- True HEPA with antibacterial filter.
- Activated carbon, cold catalyst filter.
- Silenceboost Technology.
- Timer, child lock, sleep mode.
- 5 years warranty.
- No autonomous mode.
±118.99 $$$/ 7
(annual filter cost ±38-78)
When money is no issue, the Swiss made IQAir HealthPro Plus is your go-to air purifier. The iconic white exterior stands tall at 28 inches in height, 15 inches in width, and a thick 16 inches in depth. Adding the heavy 35.3 pounds weight, IQAir will take a big presence in your home where it can be obstructing in tight spaces. Thankfully there are 4 durable casters that roll well on flat surfaces. Build quality is excellent via its ABS plastic housing with 3D UltraSeal triple-seal technology. No pollutants or toxic byproducts will be able to escape from the air purifier.
The best residential, medical standard air purifier that traps tiny allergens down to 0.003 microns in size. Ignore the expensive price tag and bulky size and you will be fine.
IQAir HealthPro Plus 6 fan speeds that work superbly in letting you decide the right ratio on performance VS noise. The digital display will indicate the current speed and other useful information. The built-in Intelligent Filter Life accurately measures the filter usage life based on a real-life scenario. That way, you will only have to replace the filter when it is completely unusable. You can also rely on the programmable timer to set what day, speed, and time you need the air purifier to work on. This helps keeps the power usage low at 27 watts per hour rather than running it at a constant 215 watts.
Into IQAir HealthPro specification:
- Filtration - PreMax Filter, HyperHEPA Filter, V5-Cell Gas & Odor Filter
- Room size - 1098 sq. ft.
- Dimension (W x H x D) - 15 x 28 x 16 in
- Weight - 35.3 lb
- Warranty - 3 years
A 100% ozone-free mechanical filtration certified by the International Association of Air Cleaner Manufacturers (IAACM). The PreMax Filter F8 traps small to large particulates to prevent them from clogging other filters. The V5-Cell Granular activated Carbon filter with Pelletized chemisorption removes chemical fumes e.g. VOCs, formaldehyde, asbestos, radon. It even removes excess colorless ozone in the air. The HyperHEPA filter capture allergens as small as 0.003 microns size, 100 times smaller than a True HEPA filter capacity. Filter usage life is rated at 2 years for V5-Cel Filter and a double 4 years for HyperHEPA Filter. You will only have to the filters every 2 years or so.
Another strong suit of IQAir HealthPro Plus is the strong airflow delivery rate. It outputs a strong 300 cfm airflow that can clean the air up to 1098 square footage. Needless to say, it is sufficient to cover the entire home or apartment let alone a room. For such a powerful air purifier, the noise level is subtle at only 23 dB minimum to a reasonable 59 dB max speed. Made possible by the curved fan-in-center centrifugal, motor vibration noise reduction rubber suspension pad, double-walled housing, and sound deflector EvenFlow Diffuser. IQAir HealthPro Plus will run quietly as long as you keep the fan speed between 1 to 2.
A superior air purifier at all angles, the hefty price of 899 dollars is not meant for everyone. Most people will spread out the funds with multiple units instead. The high filter cost is also another obstacle in the long run. The lack of auto mode is disappointing but not the end of the world. However, the bulky size will limit its usability, particularly in a small home. Simply put, if you have the money, this is the best medical-grade air purifier the world has to offer.
In short: The best residential, medical standard air purifier that traps tiny allergens down to 0.003 microns in size. Ignore the expensive price tag and bulky size and you will be fine.
- 100x better filtration than HEPA filter.
- Excellent airflow delivery rate.
- HyperHEPA Filter.
- V5-Cell Gas & Odor Filter.
- Scheduler, remote control.
- Made in Switzerland.
- Very expensive (899 dollars).
- +-150 annual filter cost.
- Big and heavy.
±899.00 $$$$$$$/ 7
(annual filter cost ±152)
What Is A Medical Grade HEPA Filter?
Medical-grade filter is an H13 HEPA filter that is widely used in airplane cabins, semiconductors, manufacturing, pharmaceutical plants, hospitals, and healthcare facilities. It is the highest-tier, best commercially available H13-H14 HEPA filter that can remove at least 99.95% of particles in the air as small as 0.1 micrometers (μm) in diameter including bacteria and viruses. All H13 HEPA filters must comply with the standard set by the US Department of Energy (DOE).
HEPA is an acronym for High Efficiency Particulate Air or High Efficiency Particulate Arrestance. It is a type of pleated mechanical air filter made of dense fiberglass, non-woven fabric material, or polypropylene with a pressure drop at around 300 pascals (0.044 psi) nominal volumetric flow rate. HEPA was first made during World War II by the U.S. government to filter radioactive particles.
Is H13 better than true HEPA?
Medical-grade H13 HEPA filter is better than a True HEPA filter due to its greater retention rate. It can trap ultrafine particles as small as 0.1 microns with a higher removal efficiency. Exactly 3 times smaller than True HEPA filter 0.3 microns limitation. HEPA H13 filter is also one tier higher than a True HEPA filter that generally ranges between H10-H12.
What Type Of Air Purifiers Do Hospitals Use?
An air purifier with HEPA filtration is used in hospitals and health care facilities. It is effective in removing airborne biological contaminants like germs, bacteria, and viruses that can worsen a patient's health condition. A HEPA air purifier is also safe for all as it does not produce chemicals or harmful byproducts during filtration.
Do You Need a Medical-Grade Air Purifier?
Doesn't matter if a person has severe allergies, everyone from babies, children, adults, and the elderly would benefit from a medical-grade air purifier. It can be used in a residential home as medical-grade air purifiers are effective at removing harmful allergens in the air. With clean indoor air, it will alleviate respiratory diseases, improve breathing, and prevent an asthma attack.
2022 Best Medical Grade H13 Air Purifiers
|No||Image||Air Purifier||Online Price (Amazon)||Filtration||Coverage|
|1||LEVOIT Core 300 Air Purifier|
|3-stage||219 sq. ft. (20 m2)|
|2||Alen BreatheSmart 45i Air Purifier|
|3-stage||800 sq. ft. (74 m2)|
|3||Medify Air MA-40 Air Purifier|
|4-stage||840 sq. ft. (78 m2)|
|4||Medify Air MA-15 Air Purifier|
|4-stage||330 sq. ft. (31 m2)|
|5||Okaysou AirMax8L Air Purifier|
|5-stage||320 sq. ft. (30 m2)|
|6||IQAir HealthPro Plus Air Purifier|
|4-stage||1,098 sq. ft. (102 m2)|