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The Best Air Purifier - 2021

Last updated on February 25, 2021

We looked at the top 17 Air Purifiers and dug through the reviews from 65 of the most popular review sites including and more. The result is a ranking of the best Air Purifiers.

Best Air Purifier

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DWYM is focused on helping you make the best purchasing decision. Our team of experts spends hundreds of hours analyzing, testing, and researching products so you don't have to.Learn more.

Look for the DWYM seal for products that are the best in a category.

Our Picks For The Top Air Purifiers

Show Contents
Our Take
Experts Included
Pros
Cons
  Best Overall

TaoTronics HEPA Filter Air Purifier

Don't Waste Your Money Seal of Approval

TaoTronics

HEPA Filter Air Purifier

Overall Take

Three Stage Filtration SystemThe four adjustable air speeds on this air purifier allow you to customize the flow in each room.

Experts Included
DWYM Home Experts plus . Along with user reviews from Amazon.
  Sleek Look

PARTU Corded HEPA Air Purifier

PARTU

Corded HEPA Air Purifier

Overall Take

Attractive DesignThis air purifier captures and neutralizes pollutants to keep you breathing easy.

Experts Included
DWYM Home Experts plus . Along with user reviews from Amazon.
  Easy to Use

Blue Pure 211+ Air Purifier

BlueAir

Blue Pure 211+ Air Purifier

Overall Take

Single Button OperationThis air purifier runs so quietly that you won't even know it's on.

Experts Included
DWYM Home Experts plus New York Times Wirecutter, Tech Gear Lab, Consumer Reports, Fresh Air Guide, Blooming Air. Along with user reviews from Amazon, Walmart and Best Buy.
Pros
" Excellent air cleaning performance, quiet operation, large CADR."
Cons
"Relatively high filter costs and loud on its lowest speed."
  We Also Like

LEVOIT 24db Filtration System True HEPA Filter Air Purifier

LEVOIT

True HEPA Filter Air Purifier

Overall Take

Great at DeodorizingIf you're looking for an air purifier with all the bells and whistles, this model with its built-in timer, pet lock button and deodorizer is for you.

Experts Included
DWYM Home Experts plus Breathe Quality, Modern Castle, Home Air Guides, Nerd Tech, Reviews of Air Purifiers, Healthline and 4 more. Along with user reviews from Amazon and Walmart.
Pros
" Very quiet operation. This air purifier comes with the cylindrical design concept, together with the same smooth flowing curves, and same 360° air intake grill like the Core 300 model. It’s Levoit’s marginally better answer to any other low-end air..."
Cons
"Feels similar to the Core 300, but with a higher price tag. No real-time air quality detection or readouts. No “Auto Mode”."
Don't just take for granted what one reviewer says. Along with our own experts, DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
24

Products Considered

We identified the majority of the air purifiers available to purchase.
17

Products Analyzed

We then selected the leading and most popular products for our team to review.

View All Product Rankings

65

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources including: Breathe Quality, Modern Castle, Home Air Guides, Nerd Tech, Reviews of Air Purifiers.

66,395

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including

Our experts reviewed the top 17 Air Purifiers and also dug through the reviews from 65 of the most popular review sites including and more. The result is a ranking of the best of the best Air Purifiers.

DWYM is your trusted roduct review source. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.

Don't Waste Your Money Seal of Approval
Look for the DWYM seal for products that are the best in their category.

The Best Overall

TaoTronics HEPA Filter Air Purifier

User Summarized Score

9.4
11,230 user reviews

Our Take

Thanks to the pre-filter, activated charcoal filter and true HEPA filter, 99.97% of airborne particles are removed when this air purifier is in operation. The unit runs quietly and fits in small spaces. It even comes with a nightlight for evening use.


The Best Bang For Your Buck

PARTU Corded HEPA Air Purifier

User Summarized Score

8.8
18,471 user reviews

Our Take

Smoke, dust and pet dander are no match for this air purifier. While cleaning the air, this unit also allows you to add a pleasant fragrance to the space using essential oils. If you have pets or small children in the home, you'll appreciate the built-in safety lock that keeps accidental touches from changing the purifier's settings.

Overall Product Rankings

TaoTronics HEPA Filter Air Purifier

1. TaoTronics HEPA Filter Air Purifier

Overall Score: 9.6
Reviews Included: 1

PARTU Corded HEPA Air Purifier

2. PARTU Corded HEPA Air Purifier

Overall Score: 9.4
Reviews Included: 1

Blue Pure 211+ Air Purifier

3. Blue Pure 211+ Air Purifier

Overall Score: 9.2
Reviews Included: 8

LEVOIT 24db Filtration System True HEPA Filter Air Purifier

4. LEVOIT 24db Filtration System True HEPA Filter Air Purifier

Overall Score: 9.1
Reviews Included: 12

Vremi Large Room Home True HEPA Filter Air Purifier

5. Vremi Large Room Home True HEPA Filter Air Purifier

Overall Score: 9.0
Reviews Included: 13

IQAir HealthPro Plus Air Purifier

6. IQAir HealthPro Plus Air Purifier

Overall Score: 9.0
Reviews Included: 5

Alen BreatheSmart Air Purifier

7. Alen BreatheSmart Air Purifier

Overall Score: 9.0
Reviews Included: 6

GermGuardian Full Room Air Purifier

8. GermGuardian Full Room Air Purifier

Overall Score: 8.9
Reviews Included: 7

AirMega 400 Air Purifier

9. AirMega 400 Air Purifier

Overall Score: 8.9
Reviews Included: 4

Coway Mighty Air Purifier

10. Coway Mighty Air Purifier

Overall Score: 8.9
Reviews Included: 11

Winix 5500-2 Air Purifier

11. Winix 5500-2 Air Purifier

Overall Score: 8.9
Reviews Included: 1

Pure Enrichment PureZone True Purifier

12. Pure Enrichment PureZone True Purifier

Overall Score: 8.9
Reviews Included: 1

Blue Pure 411 Air Purifier

13. Blue Pure 411 Air Purifier

Overall Score: 8.6
Reviews Included: 6

Whirlpool Whispure Air Purifier

14. Whirlpool Whispure Air Purifier

Overall Score: 8.2
Reviews Included: 7

LEVOIT LV H132 Air Purifier

15. LEVOIT LV H132 Air Purifier

Overall Score: 8.2
Reviews Included: 1

Honeywell True HEPA Allergen Remover

16. Honeywell True HEPA Allergen Remover

Overall Score: 7.7
Reviews Included: 5

Austin Air Healthmate Standard Air Purifier

17. Austin Air Healthmate Standard Air Purifier

Overall Score: 6.6
Reviews Included: 3

Our Air Purifier Findings


TaoTronics HEPA Filter Air Purifier

What We Liked: Thanks to the pre-filter, activated charcoal filter and true HEPA filter, 99.97% of airborne particles are removed when this air purifier is in operation. The unit runs quietly and fits in small spaces. It even comes with a nightlight for evening use.


PARTU Corded HEPA Air Purifier

What We Liked: Smoke, dust and pet dander are no match for this air purifier. While cleaning the air, this unit also allows you to add a pleasant fragrance to the space using essential oils. If you have pets or small children in the home, you’ll appreciate the built-in safety lock that keeps accidental touches from changing the purifier’s settings.


Blue Pure 211+ Air Purifier

What We Liked: Made using a three-stage filtration system, this air purifier is capable of eliminating everything from smoke to pollen to dust mites from the air in your living space. Pet, cooking and other odors are also removed from the air as they pass through the system’s activated charcoal filter. The best part about this system is that you only need to press one button to operate it.


LEVOIT 24db Filtration System True HEPA Filter Air Purifier

What We Liked: In addition to removing annoying allergens from the air in your home, this air purifier deodorizes, thanks to the activated charcoal filter. There’s a sleep mode and timer built-in, so you can program the purifier to shut off automatically. This unit even comes with a pet lock button, so your furry sidekick can’t alter any of the settings.


Vremi Large Room Home True HEPA Filter Air Purifier

What We Liked: If you’re looking to reduce the allergens in your home, you’ll want to set up this air purifier. It is able to remove 99% of the most common airborne irritants, so you’re not left suffering with itchy eyes and constant sneezing. The unit is even equipped with a reset filter indicator, so you can stay on top of filter replacements.

Our Air Purifier Buying Guide

The reasons for buying an air purifier can be as numerous as the number of pollutants in the air — and indoors, that number tends to be bigger than most people would expect. Despite the best efforts of the filters in our air conditioners, pollen and dust particles can settle into carpets and upholstery. Mold spores can grow in moist areas. And if there are pets or smoke involved, expect dander and carcinogens to be part of every breath.

Whether you suffer from allergies or just want to eliminate the smell associated with all this particulate matter, a good air purifier can be an essential accessory in any room. But how are they different from the filters we already have in our regular AC?

All that depends on the purifier. Most models circulate air through a HEPA (High-Efficiency Particulate Air) filter, and often more than one. HEPA filters are certified to trap particulate matter as small as 0.3 microns, which covers dust, pollen and most bacteria. Some purifiers boast a medical-grade Hyper-HEPA filter that will go down to 0.003 microns — enough to pick smoke out of the air.

In conjunction with this, the more high-tech air purifiers can employ an extra line of defense. Some models use an optional UV light that renders many micro-organisms sterile, and an activated charcoal filter that can actually pull in and neutralize toxins through electrostatic attraction. There are also models that can ionize incoming particles, which are then sucked in by metal plates or other treated substances.

A word of caution on ozone, though. While they’re less common these days, some air purifiers generate ozone, which, according to the manufacturers, can deodorize and disinfect the air. The jury is still out on those claims, and in fact the presence of ozone in confined spaces can be more harmful than the pollutants you’re trying to get rid of.

For a measure of general effectiveness, you can look for a rating on most air purifiers called the CADR — Clean Air Delivery Rate. It’s a number that represents the cubic feet per minute (CFM) of air that has been cleared of all the particles of a given size. These ratings are recognized by the EPA and can be found on most devices. If you can’t find them, the number is fairly easy to calculate: Just take the CFM on the air purifier and multiply it by the percentage of a certain particle (smoke, pollen, etc.) that the machine can remove.

DWYM Fun Fact

That air purifier humming away in the corner of your room may look tranquil, but it was initially created for military use. The HEPA filters that are so common today were first employed to keep lab workers safe at the Manhattan Project, the 1940s scientific effort that led to the creation of the atomic bomb. Back then, scientists were less concerned with their ability to keep their allergies in check. They were using the filters to block out as much radioactive material as possible.

The Air Purifier Tips and Advice

  • One of the first things you’ll want to consider when buying an air purifier is the kind of room you’ll be using it in. When it comes to price, this is usually the primary factor. A workhorse unit that can handle an entire living room and kitchen is going to run you significantly more than a machine that’s meant for a home office for good reason.
  • Are you looking for protection from allergies or just need to freshen up the air? A quick look at the specs for the purifier should tell you what particles it can effectively remove from the air. Again, a HEPA filter is going to do the trick for most common irritants and odors, including pet hair and dust. But if you live in a smoker’s house, look into something more robust.
  • Much like your air conditioner, you’ll likely be keeping an air purifier on for as long as you plan on breathing the air in that room. In a lot of cases, that might be all day, so power consumption matters. Frugal users might want to check out the wattage specs on prospective models. There are also features that can mitigate that electricity drain, such as timers. In most cases, your air purifier won’t be running all the time. It’ll cycle the air through a few times an hour, and you can adjust that number more or less with most models.
  • Another thing to figure into your price point are the filters. Like your AC, there’s upkeep involved. Check not only the price of your filter, but the frequency with which you’ll need to replace it.
  • Since they’re meant for indoor use, most air purifiers are better looking than, say, that wall AC unit you had in your dorm room at college. That said, few people want them as the focal point in a room. If you’re getting one for a small room, you likely want a small purifier — or at least one that’s nondescript. Sleekly designed at less than 17″ x 19″.

About The Author

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Tod Caviness 

As a professional writer for the past couple decades and a homeowner for the last seven, Tod Caviness has learned the hard way what vacuum cleaners will actually pick up dog hair and which plants will survive on a Florida patio. His favorite room: The office, with the kitchen a close second.