Top 10 Best Air Purifiers for 2020

Indoor air purifiers are the best way to clean the air in your home, apartment and office. An air purifier can improve your life greatly.

Our experts at Indoor Air Quality Guides have done all of the in-depth research and testing on air purifiers so you don’t have to.

“While many air purifiers are good for dust, pollen, mold, smoke, and pet dander, it can be hard to know which model to choose,” says Joe Sanders, lead indoor air quality specialist. “So we made the most detailed list of the best air purifiers you can trust to help you breathe easier.”

When it comes to choosing air purifiers it important to know which particles you are trying to filter out. Different types of air purifiers will serve different purposes.

Disclosure: At Indoor Air Quality Guides, we want you to find the best air purifier for your needs. All opinions expressed are of our owned and not influenced by the manufacturer. As an Amazon Associate, we may earn income from qualifying purchases made through the links below. We’ll get a small commission that supports our work. We hope you enjoy this free guide and find the best air purifier through our recommendations.

Rabbit Air MinusA2

Best Air Purifier for Asthma

We consider this the best home air purifier system available due to its wide range of features and air cleaning power. The Rabbit Air MinusA2 air purifier offers a remarkable 6-stage air purification process that creates the cleanest, freshest air possible. This includes:

  1. Pre-filter – To capture the largest particles and prolongs the life of the other filters.
  2. Medium Filter – Traps large allergens and dust particles.
  3. BioGS HEPA Filter – Extra-long life version of a True HEPA Filter that captures the tiniest of all allergens, dust, pollen, and mold particles (99.97% down to 0.3 microns). Lasts up to 3 years which is 3 times as long as any other filter on the market.
  4. Activated Carbon Filter – Eliminates household odors from pets and cooking and chemical vapors.
  5. Customized Filter – You can customize this filter based on your specific needs. Choose between enhanced germ defense, toxin absorption, pet allergies or odor elimination.
  6. Ion Generator – Creates an ionic field to neutralize airborne contaminants without producing ozone.

Room size coverage is also excellent at 700 square feet, which covers most areas in the home. If you can afford it, however, we highly suggest that you invest in the best air purifying machine.

CADR Rating (cfm): 166 Smoke | 173 Dust | 171 Pollen

ACH Rating: 2X ACH

Annual replacement cost: $replacement 85

 
Warranty: Keep your air purifier protected with an industry-leading 5-year warranty, free shipping within the contiguous US, and lifetime 24/7 technical support.

For a more in-depth analysis, visit our detailed review page of this air purifier.

PROS

+ Wall mounted and customizable front panel can let device appear as art inside of a room

+ Long lifespan filters

+ Great filtration capability in removing contaminants

CONS

one of the more expensive options but worth it if you can afford it

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Germ Guardian AC4100

Best Affordable Air Purifier

GermGuardian-AC41000

If we had to choose an air purifier best on quality and affordability then the Germ Guardian AC4100 Air Purifier would be our top pick.

This 3-in-1 desktop air purifier has a true HEPA air filter which reduces up to 99.7% of pollen, dust, pet dander, mold and allergens as small as 0.3 microns from the air. This 11 inch compact design is perfect for small rooms.

Kill Germs – Ultraviolet-C Light helps eliminate airborne viruses such as Influenza, Staph, rhinovirus and works in cocombination with Titanium Dioxide to kill volatile organic compounds.

Filter allergens – True HEPA air filters dust, pet dander and other large particles.

Reduce odors – The activated charcoal filter reduces unwanted odors from pets, smoke, cooking fumes and chemicals

Replacement Costs – $19.99 every 6-8 months

CADR Rating (cfm): 50 Smoke | 66 Dust | 76 Pollen

ACH Rating: 2X ACH

Warranty – 1 year warranty

For a more in-depth analysis, visit our detailed review page of this air purifier.

PROS

+ Best cheap air purifier under $60

+ Good filtration process

CONS

noisy at highest setting

– lack of smart features

– 1 year warranty

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Honeywell HPA300 True HEPA

Best Air Purifier for Allergies

The Honeywell HPA300 True Allergen Remover Air Purifier is the #1 recommended by allergists.  It has 5 air changes per hour, 4 cleaning levels and easy to use touch controls.

Room Coverage – Recommended for extra large rooms up to 463 square feet

True HEPA filter – captures up to 99.7% of allergens such as smoke, pet dander, dust, dust mite debris and pollen. Can also help reduce certain airborne germs: viruses, bacteria and mold spores.

Replacement costs – $36.99 every six months. Air purifier has an indicator to show when filter needs to be changed.

CADR Rating (cfm): 300 Smoke | 320 Dust | 300 Pollen

ACH Rating: 5X ACH

Warranty – 5 year warranty

For a more in-depth analysis, visit our detailed review page of this air purifier.

PROS

+ Best value

+ Great performance and fan power

+ Best air purifier for allergies

CONS

not great for odor

– quite noisy

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Winix PlasmaWave 5500-2

Best Air Purifier for Dust

The WINIX 5500-2 Air Purifier is designed for any home environment and ready to capture dust, pollen, pet dander, smoke, mold spores, volatile organic compounds, and indoor odors.

3-Stage Air Cleaning System:

  1. Advanced Odor Control Carbon Filter – offers great protection against VOCs and household odors from cooking, pets and smoke. Filter is washable to extend effectiveness.
  2. True Hepa Filter – 99.97% filters out allergens
  3. PlasmaWave Technology – creates Hydroxyls to instantly neutralize bacteria, VOCs, odors and gases while emitting no harmful ozone.

Room coverage – Best suited for a medium sized room up to 360 square feet.

CADR Rating (cfm): 232 Smoke | 243 Dust | 246 Pollen

ACH Rating: 4X ACH

Replacement filter costs – $79.99 yearly

Warranty – 2 years warranty

For a more in-depth analysis, visit our detailed review page of this air purifier.

PROS

+ “Energy Star” Certified

+ Quiet on lower settings

+ Comprehensive and effective air purifier

CONS

Remote has no backlight

– Sleep mode doesn’t turn off all lights

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Coway AIRMEGA 300S

Best Smart Air Purifier

The Coway Airmega 300s Smart Enabled Air Purifier is a smart device that is compatible with Alexa, Dash Replishment and Google Home.

The Airmega’s pollution sensor communicates indoor air quality testing in real-time letting you know how clean or dirty you are air is by the minute.

This device is the perfect balance of design and technology that combines activated carbon and True HEPA filter to capture and reduce up to 99. 97% of 0. 3 micron particles in the air.

It also reduces volatile organic compounds by more than 99% and reduces fumes such as NH3 and CH3CHO. Includes washable and permanent pre-filter to catch larger dust particles.

Room coverage – for large rooms up to 1256 square feet.

CADR Rating (cfm): 260 Smoke | 260 Dust | 260 Pollen

ACH Rating: 2X ACH

Replacement filter costs – $59.99 per year

Warranty – 5 years for motor and electronic parts

For a more in-depth analysis, visit our detailed review page of this air purifier.

PROS

+ Complete air purifier control compatible with Alexa and Google Home

+ Large room coverage

+ Indoor and outdoor air quality monitoring

CONS

High cost filter replacement

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Hamilton Beach TrueAir Compact

Best Compact Pet Air Purifier

If you have pets and want to freshen the air and remove pet dander, then look no further than this compact air purifier.

It has more than 4,600+ reviews by consumers and continues to be one of the highest rated air purifiers on Amazon.

This device uses a Permanent HEPA-type Filter that can simply be cleaned with a vacuum which will save you a lot of money. It also includes two carbon filters for odor control.

It can handle a space up to 160 square feet, which is much larger than other compact air purifiers.

This is a great investment for any pet owner.

Room coverage – for small rooms up to 160 square feet

Replacement filter costs – $0, permanent HEPA filter that can be cleaned with a vacuum

$8.96 for a 3 pack of carbon zeolite filters that eliminate pet odors.

CADR Rating (cfm): 35 Smoke | 35 Dust | 35 Pollen

ACH Rating: 2X ACH

Warranty – 1 years warranty

For a more in-depth analysis, visit our detailed review page of this air purifier.

PROS

+ Ease of use

+ Easy to clean the filter

+ Effective dust reduction

+ Compact design

CONS

1 year warranty

– highest speed setting is loud for some

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Winix HR900 Ultimate

Best Pet Air Purifier

The Winix HR900 Ultimate is the best pet air purifier on the market. It’s 5 stage filtration combines the best features in air purification systems:

  1. Ultimate Pet Pre-Filter – First line of defense against pet hair, dander and the largest particles.
  2. Washable Fine Mesh Pre-Filter – Designed to catch larger airborne particles found indoors.
  3. Advanced Odor Control Carbon Filter – Offers great odor protection against VOCs and household odors from cooking, pets and smoke.
  4. True HEPA Filter – Captures 99.97% of airborne allergens including pollen, mold spores, dust, pet dander, microbes and smoke. *particles as small as 3 microns in size.
  5. Advanced PlasmaWave Technology – Breaks down particles at a molecular level.

Room coverage – for medium rooms up to 300 square feet.

CADR Rating (cfm): 194 Smoke | 200 Dust | 220 Pollen

ACH Rating: 4X ACH

Replacement filter costs – $73.71 per year for the filter T

Warranty – 2 years

For a more in-depth analysis, visit our detailed review page of this air purifier.

PROS

+ Complete air purifier control compatible with Alexa and Google Home

+ Large room coverage

+ Indoor and outdoor air quality monitoring

CONS

High cost filter replacement

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Coway Mighty Air (AP-1512HH)

Best HEPA Air Purifier

The Coway Mighty (AP-1512HH) air purifier is small and powerful with its four-stage system:

  1. Pre-filter
  2. Odor filter,
  3. HEPA filter
  4. Bipolar device reduce contaminants in the air

* The unit also employs a filter-change indicator, energy-saving eco mode, automatic speed control based on particles in the air and an intuitive air quality indicator.

Room coverage – for typical rooms up to 361 square feet.

CADR Rating (cfm): 233 Smoke | 246 Dust | 240 Pollen

ACH Rating: 4X ACH

Replacement filter costs – $44.99 per year

Warranty – 5 years for motor and electronic parts

For a more in-depth analysis, visit our detailed review page of this air purifier.

PROS

+ Cutting edge technology

+ Innovative compact design

+ Amazing performance

CONS

top light can’t be turned off

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Holmes HAP242-NUC Air Purifier

Best Desktop Air Purifier

Suited for a 10-by-11-foot room, this air purifier from Holmes improves the quality and freshness of the atmosphere in your home. The purifier stands upright or lies flat, is quiet in operation, and features three power settings. The unit uses a HEPA filter to trap 99% of typical airborne particles, while an activated carbon filter removes odors from the air. Both filters are accessed through a pop-off cover, and sliding switches control the settings.

Room coverage – for small rooms up to 109 square feet

Replacement filter costs – $16.99 per year

CADR Rating (cfm): 72 Smoke | 72 Dust | 72 Pollen

ACH Rating: 2X ACH

Warranty – 3 years

For a more in-depth analysis, visit our detailed review page of this air purifier.

PROS

+ Extremely low priced

+ Great customer service

CONS

no TRUE HEPA filter

– cheap build

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Levoit Air Purifier

Best Air Purifier for Mold

The Levoit Core 300 air purifier is Amazon’s top selling HEPA air purifier.

Improved Filtration: The HEPA filter works with ultra-fine pre-filter and activated carbon filter trapping 99.97% of fine particles as small as 0.3 microns and large pollutants such as pollen, dust, pet dander and smoke.

Most Silent Air Cleaner: The noise level is nearly silent at sleep mode with only 24db.

Energy Star Verified and holds one of the strictest certifications with California air resources board (CARB) for indoor cleaning devices.

Room coverage – for medium rooms up to 215 square feet.

CADR Rating (cfm): 145 Smoke | 140 Dust | 141 Pollen

ACH Rating: 5X ACH

Replacement filter costs – $19.99 per year

Warranty – 1 year

For a more in-depth analysis, visit our detailed review page of this air purifier.

PROS

+ Most silent air purifier

+ “Energy Star” Certified

+ Small and effective

CONS

Night light can be irritating at night

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