What are air purifiers?

Air purifiers are devices that remove contaminants from the air in a room to improve indoor air quality.

How do air purifiers work?

Air purifiers work by drawing in air, filtering out particles, bacteria, and allergens, and then releasing clean air back into the room.

What types of filters do air purifiers use?

Most air purifiers use HEPA filters, activated carbon filters or a combination of both.

Can air purifiers reduce odors?

Yes, many air purifiers can reduce common household odors by filtering out the particles that cause these smells.

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

It depends on usage and the specific model, but generally, filters should be replaced every 6-12 months.

April 1, 2026

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10 Best air purifiers for asthmas of 2026

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Best Choice

1

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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
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
- Filtration System:HEPA 14
- Coverage Area:1,115 sq ft
- Timer:Included
- Noise Level:N/A
- Particle Size:0.1 microns
9.7

Exceptional

Our Rating

9.9
Simple to use

9.9
Luminosity

9.7
Time function
How do we rank?

Powerful technology We scan thousands of products and stores, analyzing reviews to find what matters most to users like you

Careful review Our team ensures quality, value, and fit based on real user feedback

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Based on millions of stores and reviews

Shoppers influence our rankings
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Value for Money

2

LEVOIT
LEVOIT Air Purifiers for Home Large Room Up to 1875 Ft² with Washable Pre-Filter, AHAM VERIFIDE, Air Quality Monitor, HEPA Sleep Mode for Allergies, Pet Hair in Bedroom, Vital 200S-P, White
Main highlights

Powerful Air Purification
Filters 99.97% of particles, ideal for allergies and pet hair.

Ideal for Large Spaces
Covers up to 1800 sq ft, perfect for large rooms.

Quiet and Smart Operation
Praised for quiet performance and smart app control.
Key specs
- Filtration System:3-stage filtration system
- Coverage Area:1800 Square Feet
- Timer:Set timers with app
- Noise Level:24 dB
- Particle Size:0.3 Micron
9.6

Exceptional

Our Rating

9.7
Maneuverability

9.7
Simple to use

9.7
Aroma
3

PuroAir
PuroAir 240 HEPA Air Purifiers 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 (2 Pack)

15% Off Limited Time Deal
Main highlights

Powerful Air Cleaning
Cleans rooms up to 1,115 sq ft in 67 minutes with HEPA 14 filter capturing 99.99% of particles.

Ideal for Allergy Sufferers
Perfect for homes with pets, smoke, or dust; improves air quality and reduces allergens.

Praised for Dust Reduction
Customers appreciate its effectiveness in reducing dust and improving air quality.
Key specs
- Filtration System:HEPA 14 filter
- Coverage Area:1,115 sq ft
- Timer:Included
- Noise Level:N/A
- Particle Size:0.1 microns
9.4

Excellent

Our Rating

9.9
Simple to use

9.9
Luminosity

9.7
Time function
4

LEVOIT
LEVOIT Air Purifier for Home Large Room Up to 1073Ft² with Air Quality Monitor, AHAM VERIFIDE, Smart WiFi, Washable Pre-Filter, HEPA Sleep Mode for Pets, Allergies, Dust, Pollen, Vital 100S-P, White
Main highlights

Powerful Filtration Efficiency
Captures 99.97% of particulates, including dust, pollen, and pet dander.

Ideal for Pet Owners
Pet Mode traps pet fur and large particles, conserving energy.

Quiet and Discreet Operation
Minimal noise, praised for quiet performance even at high settings.
Key specs
- Noise Level:23 dB
- Particle Size:0.3 Micron
- CADR:143 CFM
- Timer:Set timers with app
- Filtration System:3-stage filtration system
9.3

Excellent

Our Rating

9.7
Simple to use

9.7
Power saving mode

9.5
Time function
5

BLUEAIR
BLUEAIR Air Purifiers for Large Rooms, Cleans 3,048 Sqft In One Hour, HEPASilent Smart Air Cleaner For Home, Pets, Allergies, Virus, Dust, Mold, Smoke - Blue Pure 211i Max

43% Off Limited Time Deal
Main highlights

HEPASilent Technology
Delivers fast, quiet air purification with dual filtration.

Ideal for Large Spaces
Perfect for rooms up to 1,524 sqft in size.

Highly Praised Smart Features
App control and air quality monitoring praised by users.
Key specs
- Filtration System:HEPASilent dual filtration
- Coverage Area:635 Square Feet
- Timer:N/A
- Noise Level:23 dB
- Particle Size:0.1 microns
9.2

Excellent

Our Rating

9.7
Simple to use

9.5
Simple to clean

9.1
Maneuverability
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6

LEVOIT
LEVOIT Air Purifier for Home Allergies Pet Hair in Bedroom, Covers Up to 1073 ft² by 56W High Torque Motor, AHAM VERIFIDE, 3-in-1 Filter with HEPA Sleep Mode, Remove Dust Smoke Odor, Core300-P, White

10% Off
Main highlights

High Torque Motor Efficiency
The 45W motor purifies up to 1095 ft² with 141 CFM CADR.

Ideal for Allergy Sufferers
Perfect for homes with pets, capturing allergens like dust and dander.

Praised Quiet Operation
Customers love the near-silent 24dB Sleep Mode for undisturbed rest.
Key specs
- Filtration System:HEPA-grade
- Coverage Area:1095 ft
- Timer:2/4/6/8 hours
- Noise Level:24 dB
- Particle Size:0.3 Micron
9.1

Excellent

Our Rating

9.9
Simple to use

9.7
Time function

9.7
quality of sleep
7

LEVOIT
LEVOIT Air Purifiers for Bedroom Home Dorm, AHAM VERIFIED, 3-in-1 Filter Claener with Fragrance Sponge, Portable Filters Smoke, Allergens, Pet Dander, Odor, Dust, Office, Desktop, Core Mini-P, White

16% Off
Main highlights

Efficient Air Purification
Levoit Core Mini-P uses 360 VortexAir Technology and 3-stage filtration for superior air quality.

Perfect for Small Spaces
Ideal for bedrooms, offices, and small living areas with a 240 square feet coverage.

Praised Quiet Operation
Customers love the low noise level, enhancing sleep and comfort at 25dB.
Key specs
- floor area:240 Square Feet
- wattage:7 watts
- controller:Button Control
- product dimensions:6.5D x 6.5W x 10.4H
- assembly:No
9.0

Excellent

Our Rating

9.9
Light weight

9.7
Simple to use

9.3
For small areas
8

FULMINARE
Air Purifiers for Bedroom, FULMINARE H13 True HEPA Air Filter, Quiet Air Cleaner With Night Light, Portable Small Air Purifier for Home, Office, Living Room

25% Off Limited Time Deal
Main highlights

Efficient Particle Filtration
The FULMINARE air purifier features an H13 HEPA filter, ensuring cleaner air and a healthier environment for your family.

Ideal for Bedrooms and Small Spaces
Optimized for rooms up to 215 sq ft, perfect for bedrooms, offices, and living rooms.

Praised Quiet Operation
Customers love its low-noise levels, especially on low fan speed, making it ideal for light sleepers.
Key specs
- Filtration System:H13 HEPA filter
- Coverage Area:215 square feet
- Timer:2-4-8-10-12 hours
- Noise Level:24db at low speed
- Particle Size:N/A
8.9

Very Good

Our Rating

9.9
Simple to use

9.7
worth the money

9.5
Aroma
9

FULMINARE
Air Purifiers for Bedroom, FULMINARE H13 True HEPA Air Filter, Quiet Air Cleaner With Night Light, Portable Small Air Purifier for Home, Office, Living Room
Main highlights

Efficient Particle Filtration
The FULMINARE air purifier features an H13 HEPA filter, ensuring cleaner air and a healthier environment for your family.

Ideal for Bedrooms and Small Spaces
Optimized for rooms up to 215 sq ft, perfect for bedrooms, offices, and living rooms.

Praised Quiet Operation
Customers love its low-noise levels, especially on low fan speed, making it ideal for light sleepers.
Key specs
- Filtration System:H13 HEPA filter
- Coverage Area:215 square feet
- Timer:2-4-8-10-12 hours
- Noise Level:24db at low speed
- Particle Size:N/A
8.8

Very Good

Our Rating

9.9
Simple to use

9.7
worth the money

9.5
Aroma
10

MOOKA
Air Purifiers for Home Large Room 2200 Ft² with Washable Filters, MOOKA H13 HEPA Air Purifier for Home Pets Bedroom with Fragrance, Air Cleaner for Smoke Dust Pollen Pets Hair Odor, KJ190L White
Main highlights

Efficient Air Purification
Designed with dual-side air inlets, this purifier covers 2000 sq ft/hour, efficiently trapping pet hair and odors.

Ideal for Pet Owners
Perfect for homes with pets, it reduces odors and hair, enhancing air quality.

Highly Praised Quiet Operation
Customers appreciate its low noise even at high speeds, making it suitable for any room.
Key specs
- Filtration System:3-stage filtration system
- Coverage Area:2000 ft per hour
- Timer:2/4/6/8h
- Noise Level:20dB in sleep mode
- Particle Size:0.3 microns
8.6

Very Good

Our Rating

Frequently Asked Questions

What are air purifiers?
Air purifiers are devices that remove contaminants from the air in a room to improve indoor air quality.

How do air purifiers work?
Air purifiers work by drawing in air, filtering out particles, bacteria, and allergens, and then releasing clean air back into the room.

What types of filters do air purifiers use?
Most air purifiers use HEPA filters, activated carbon filters or a combination of both.

Can air purifiers reduce odors?
Yes, many air purifiers can reduce common household odors by filtering out the particles that cause these smells.

How often should I replace the filters in an air purifier?
It depends on usage and the specific model, but generally, filters should be replaced every 6-12 months.

10 Best air purifiers for asthmas of 2026

1

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

How do we rank?

How do we rank?

Analyzing top stores

2

LEVOIT Air Purifiers for Home Large Room Up to 1875 Ft² with Washable Pre-Filter, AHAM VERIFIDE, Air Quality Monitor, HEPA Sleep Mode for Allergies, Pet Hair in Bedroom, Vital 200S-P, White

9.7

9.7

9.7

3

PuroAir 240 HEPA Air Purifiers 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 (2 Pack)

9.9

9.9

9.7

4

LEVOIT Air Purifier for Home Large Room Up to 1073Ft² with Air Quality Monitor, AHAM VERIFIDE, Smart WiFi, Washable Pre-Filter, HEPA Sleep Mode for Pets, Allergies, Dust, Pollen, Vital 100S-P, White

9.7

9.7

9.5

5

BLUEAIR Air Purifiers for Large Rooms, Cleans 3,048 Sqft In One Hour, HEPASilent Smart Air Cleaner For Home, Pets, Allergies, Virus, Dust, Mold, Smoke - Blue Pure 211i Max

9.7

9.5

9.1

6

LEVOIT Air Purifier for Home Allergies Pet Hair in Bedroom, Covers Up to 1073 ft² by 56W High Torque Motor, AHAM VERIFIDE, 3-in-1 Filter with HEPA Sleep Mode, Remove Dust Smoke Odor, Core300-P, White

9.9

9.7

9.7

7

LEVOIT Air Purifiers for Bedroom Home Dorm, AHAM VERIFIED, 3-in-1 Filter Claener with Fragrance Sponge, Portable Filters Smoke, Allergens, Pet Dander, Odor, Dust, Office, Desktop, Core Mini-P, White

9.9

9.7

9.3

8

Air Purifiers for Bedroom, FULMINARE H13 True HEPA Air Filter, Quiet Air Cleaner With Night Light, Portable Small Air Purifier for Home, Office, Living Room

9.9

9.7

9.5

9

Air Purifiers for Bedroom, FULMINARE H13 True HEPA Air Filter, Quiet Air Cleaner With Night Light, Portable Small Air Purifier for Home, Office, Living Room

9.9

9.7

9.5

10

Air Purifiers for Home Large Room 2200 Ft² with Washable Filters, MOOKA H13 HEPA Air Purifier for Home Pets Bedroom with Fragrance, Air Cleaner for Smoke Dust Pollen Pets Hair Odor, KJ190L White

Frequently Asked Questions

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