Blueair Blue Pure 211i Max
An app-connected air purifier for extra-large rooms.
Edition 2026
The best air purifiers
One number decides most of this: clean air delivery rate for the size of your room. Everything else is a filter subscription in disguise.
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Also listed
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Blueair Blue Pure 311i+ Max
An app-connected air purifier for large rooms.
Coway Airmega 250
An air purifier with automatic airflow control and real-time air-quality monitoring.
Coway Airmega 400
A large-space air purifier with dual filters and automatic operating modes.
Levoit Core 300S-P Smart Air Purifier
A compact smart air purifier intended for medium-sized rooms.
Levoit Vital 200S-P Smart Air Purifier
A smart air purifier with a washable pre-filter and pet-focused air inlet.
How we judged this
Fixed before anything was ranked
What we look at
- Clean air delivery rate published for a stated room size
- True HEPA filtration, with the grade named
- Annual filter cost published alongside the purchase price
- Noise at the speed you would actually sleep with
- No ozone-producing ioniser sold as a feature
Helps if you have it: A third-party clean air delivery rate certificate and the published annual filter cost.
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