What is the main function of an air purifier?

An air purifier's main function is to remove contaminants from the air in a room to improve indoor air quality.

Can air purifiers remove odors?

Yes, many air purifiers can remove odors by trapping airborne particles that cause smells.

Do all air purifiers use filters?

Most air purifiers use filters, but some models use technologies like ionizers or UV lights.

How often should I replace the filter in an air purifier?

Typically, air purifier filters should be replaced every 6 to 12 months, but it can vary by model.

Do air purifiers use a lot of energy?

The energy use of air purifiers varies, but many modern models are designed to be energy efficient.

April 3, 2026

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10 Best wirecutter air purifiers of 2026

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1

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Coway

Bundle | Coway Airmega AP-1512HH True HEPA Air Purifier, Set of 2, White + Black

28% Off
9.8

Exceptional

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Value for Money

2

BLUEAIR
BLUEAIR Air Purifiers for Medium Rooms, Bedroom, Kitchen, Cleans 1,858 sqft in one hour, HEPASilent Smart Air Cleaner for Home, Pets, Allergies, Virus, Dust, Mold, Smoke - Blue Pure 311i Max
Main highlights

Efficient Cleaning and Quiet Operation
Blue Pure 311i Max cleans up to 929 sqft in 30 minutes with up to 50% less noise.

Ideal for Allergy Sufferers and Pet Owners
Removes 99.97% of particles like viruses, smoke, and pet dander.

Smart Features and App Integration
Features include air quality monitoring, scheduling, and Alexa voice control.
Key specs
- Particle Size:0.1 microns
- Filtration System:HEPASilent dual filtration
- Coverage Area:929sqft
- Noise Level:23-50dB
- Power:32W on high
9.7

Exceptional

Our Rating

9.7
Simple to use

9.5
Simple to clean

9.1
Maneuverability
3

Coway
Coway Airmega AP-1512HH(W) True HEPA Purifier with Air Quality Monitoring, Auto, Timer, Filter Indicator, and Eco Mode, 16.8 x 18.3 x 9.7, White
Main highlights

Comprehensive Filtration System
Features a 4-stage filtration system capturing 99.97% of particles as small as 0.3 microns.

Ideal for Medium to Large Rooms
Effectively purifies air in spaces up to 361 sq. ft.

Highly Rated for Quiet Operation
Praised for its quiet performance, especially on low and medium settings.
9.5

Excellent

Our Rating

9.5
Time function

9.5
Power saving mode

9.5
materials Quality
4

BLUEAIR
BLUEAIR Air Purifiers for Bedroom Small Room Air Purifiers for Home Air Purifiers for Pets Allergies Air Cleaner, HEPASilent Virus Air Purifier for Dust Baby Air Purifier for Nursery Blue Pure 511
Main highlights

Efficient Air Cleaning
HEPASilent technology cleans up to 432 sqft in 30 min.

Ideal for Bedrooms and Offices
Low noise levels make it perfect for quiet environments.

Highly Praised Double Filtration
Customers love its effective real-time air quality monitoring.
Key specs
- Particle Size:0.1 microns
- Filtration System:HEPASilent technology
- Coverage Area:432 sqft
- Noise Level:24 dB
- Power:Less energy than light bulb
9.3

Excellent

Our Rating

9.1
Power saving mode

8.9
Maneuverability

8.9
Noise level
5

BLUEAIR
BLUEAIR Air Purifiers for Bedroom Small Room Air Purifiers for Home Air Purifiers for Pets Allergies Air Cleaner, HEPASilent Virus Air Purifier for Dust Baby Air Purifier for Nursery Blue Pure 511
Main highlights

Efficient Air Cleaning
HEPASilent technology cleans up to 432 sqft in 30 min.

Ideal for Bedrooms and Offices
Low noise levels make it perfect for quiet environments.

Highly Praised Double Filtration
Customers love its effective real-time air quality monitoring.
Key specs
- Particle Size:0.1 microns
- Filtration System:HEPASilent technology
- Coverage Area:432 sqft
- Noise Level:24 dB
- Power:Less energy than light bulb
9.1

Excellent

Our Rating

9.1
Power saving mode

8.9
Maneuverability

8.9
Noise level
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6

Winix
WINIX 5510 Air Purifier (New Generation of 5500-2 with App Support) for Home Large Room Up to 1881 Ft² in 1 Hr, True HEPA, High Deodorization Carbon Filter and Auto Mode, Captures Pet Allergies, Smoke
Main highlights

Efficient Air Cleaning
Purifies large spaces up to 1,881 sq ft in 1 hour, capturing 99.99% of allergens down to 0.01 microns.

Ideal for Allergy Sufferers
Best used in homes with pets or high pollen exposure to reduce allergens and odors.

Praised Quiet Operation
Customers appreciate the quiet sleep mode and real-time air quality monitoring.
Key specs
- Particle Size:0.01 Micron
- Filtration System:HEPA Filter
- Coverage Area:1881 Square Feet
- Noise Level:27 dB
- Power:50 watts
9.0

Excellent

Our Rating
7

Winix
WINIX 5510 Air Purifier (New Generation of 5500-2 with App Support) for Home Large Room Up to 1881 Ft² in 1 Hr, True HEPA, High Deodorization Carbon Filter and Auto Mode, Captures Pet Allergies, Smoke
Main highlights

Efficient Air Cleaning
Purifies large spaces up to 1,881 sq ft in 1 hour, capturing 99.99% of allergens down to 0.01 microns.

Ideal for Allergy Sufferers
Best used in homes with pets or high pollen exposure to reduce allergens and odors.

Praised Quiet Operation
Customers appreciate the quiet sleep mode and real-time air quality monitoring.
Key specs
- Particle Size:0.01 Micron
- Filtration System:HEPA Filter
- Coverage Area:1881 Square Feet
- Noise Level:27 dB
- Power:50 watts
8.9

Very Good

Our Rating
8

PuroAir
PuroAir 240 HEPA Air Purifier for Home Large Rooms - Covers Up To 1,000 Sq Ft - Filters Up To 99.9% of Pollutants, Smoke, Pollen, Dust - Quiet HEPA Air Filter - Air Purifiers for Bedroom

20% Off
Main highlights

Efficient Large Room Cleaning
Cleans up to 1,115 sq ft in 67 minutes, ideal for homes and offices.

Optimal for Allergy Sufferers
Captures 99.99% of allergens, dust, and odors for better air quality.

Highly Praised Air Quality Improvement
Customers appreciate noticeable air quality enhancement and reduced dust.
Key specs
- Particle Size:0.1 microns
- Filtration System:HEPA 14
- Coverage Area:1,115 sq ft
- Noise Level:N/A
- Power:N/A
8.7

Very Good

Our Rating

9.9
Simple to use

9.9
Luminosity

9.7
Time function
9

LEVOIT
LEVOIT Air Purifiers for Home Large Room Up to 1733 Ft² With HEPA Sleep Mode, AHAM VERIFIDE, Auto Mode, Air Quality Monitor, Smart WiFi, 3-in-1 Filter For Pet Allergy, Smoke, Dust, Core 400S-P, White

14% Off
Main highlights

Comprehensive Air Purification
HEPA-grade filtration captures 99.97% of particles, ensuring clean air.

Versatile Home Use
Ideal for living rooms, bedrooms, kitchens, and basements.

Quiet Sleep Mode
Many users praise its whisper-level quietness during nighttime.
Key specs
- Particle Size:0.1-0.3 microns
- Filtration System:3-in-1 HEPA-grade
- Coverage Area:1980 Square Feet
- Noise Level:24 dB
- Power:24 watts
8.6

Very Good

Our Rating

9.7
Simple to use

9.5
Power saving mode

9.5
Remote Control
10

Clorox
Clorox HEPA Air Purifiers for Home, True HEPA Filter, Medium Rooms Up to 1,000 Sq Ft, Removes 99.9% of Mold, Viruses, Wildfire Smoke, Allergens, Pet Allergies, Dust, AUTO Mode, Whisper Quiet
Main highlights

True HEPA Filtration
Captures 99.97% of particles as small as 0.1 microns.

Suitable for Medium Rooms
Effective in spaces up to 1,000 sq ft with 360 airflow.

Quiet Operation
Praised for its whisper-quiet performance, even on high settings.
8.5

Good

Our Rating

9.9
Power saving mode

9.9
clearly written

9.9
Simple to use

Frequently Asked Questions

What is the main function of an air purifier?
An air purifier's main function is to remove contaminants from the air in a room to improve indoor air quality.

Can air purifiers remove odors?
Yes, many air purifiers can remove odors by trapping airborne particles that cause smells.

Do all air purifiers use filters?
Most air purifiers use filters, but some models use technologies like ionizers or UV lights.

How often should I replace the filter in an air purifier?
Typically, air purifier filters should be replaced every 6 to 12 months, but it can vary by model.

Do air purifiers use a lot of energy?
The energy use of air purifiers varies, but many modern models are designed to be energy efficient.

10 Best wirecutter air purifiers of 2026

1

Bundle | Coway Airmega AP-1512HH True HEPA Air Purifier, Set of 2, White + Black

How do we rank?

How do we rank?

Analyzing top stores

2

BLUEAIR Air Purifiers for Medium Rooms, Bedroom, Kitchen, Cleans 1,858 sqft in one hour, HEPASilent Smart Air Cleaner for Home, Pets, Allergies, Virus, Dust, Mold, Smoke - Blue Pure 311i Max

9.7

9.5

9.1

3

Coway Airmega AP-1512HH(W) True HEPA Purifier with Air Quality Monitoring, Auto, Timer, Filter Indicator, and Eco Mode, 16.8 x 18.3 x 9.7, White

9.5

9.5

9.5

4

BLUEAIR Air Purifiers for Bedroom Small Room Air Purifiers for Home Air Purifiers for Pets Allergies Air Cleaner, HEPASilent Virus Air Purifier for Dust Baby Air Purifier for Nursery Blue Pure 511

9.1

8.9

8.9

5

BLUEAIR Air Purifiers for Bedroom Small Room Air Purifiers for Home Air Purifiers for Pets Allergies Air Cleaner, HEPASilent Virus Air Purifier for Dust Baby Air Purifier for Nursery Blue Pure 511

9.1

8.9

8.9

6

WINIX 5510 Air Purifier (New Generation of 5500-2 with App Support) for Home Large Room Up to 1881 Ft² in 1 Hr, True HEPA, High Deodorization Carbon Filter and Auto Mode, Captures Pet Allergies, Smoke

7

WINIX 5510 Air Purifier (New Generation of 5500-2 with App Support) for Home Large Room Up to 1881 Ft² in 1 Hr, True HEPA, High Deodorization Carbon Filter and Auto Mode, Captures Pet Allergies, Smoke

8

PuroAir 240 HEPA Air Purifier for Home Large Rooms - Covers Up To 1,000 Sq Ft - Filters Up To 99.9% of Pollutants, Smoke, Pollen, Dust - Quiet HEPA Air Filter - Air Purifiers for Bedroom

9.9

9.9

9.7

9

LEVOIT Air Purifiers for Home Large Room Up to 1733 Ft² With HEPA Sleep Mode, AHAM VERIFIDE, Auto Mode, Air Quality Monitor, Smart WiFi, 3-in-1 Filter For Pet Allergy, Smoke, Dust, Core 400S-P, White

9.7

9.5

9.5

10

Clorox HEPA Air Purifiers for Home, True HEPA Filter, Medium Rooms Up to 1,000 Sq Ft, Removes 99.9% of Mold, Viruses, Wildfire Smoke, Allergens, Pet Allergies, Dust, AUTO Mode, Whisper Quiet

9.9

9.9

9.9

Frequently Asked Questions

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