Room size and CADR
Pick a purifier rated for a room larger than yours.
Filters
True HEPA captures fine particles; carbon helps with odours.
Noise
Check decibels on the lowest setting for bedrooms.
Our recommendations
Ready to choose? See our Best Air Purifiers.
Recommended products
Air Purifiers
BuyBest for large rooms
Coway Airmega 400S
Huge coverage, smart sensor
Pros
- Covers very large rooms
- Air-quality sensor
Cons
- Large
- Expensive filters
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Air Purifiers
BuyBest value
Levoit Core 400S
Strong CADR for the price
Pros
- Great value
- Quiet sleep mode
Cons
- Filters needed every 6–8 months
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Air Purifiers
BuyBest design
Blueair Blue Pure 211i Max
Washable pre-filter fabric
Pros
- Very quiet
- Washable fabric pre-filter
Cons
- Pricier filters
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Frequently asked questions
Do air purifiers help with allergies?
True HEPA filters capture airborne particles such as pollen and dust. They do not replace medical advice.