Large rooms$300
Blueair Blue Signature (Medium)
- CADR
- 321 cfm
- Room
- 502 ft²
- Quietest
- 19 dB
- Per year
- $91
Furniture-style design; filters rated up to 12 months.
Quietest air purifiers for bedrooms
Lowest noise on the quietest setting.
Medium rooms$144
Blueair Blue Pure 411i+ Max
- CADR
- 167 cfm
- Room
- 261 ft²
- Quietest
- 19 dB
- Per year
- $42
Cheap filters that last up to a year: one of the lowest running costs here.
Small rooms$140
Blueair Blue Pure 511i Max
- CADR
- 153 cfm
- Room
- 239 ft²
- Quietest
- 19 dB
- Per year
- $62
Very quiet on low and sips power (17W).
Large rooms$649
Coway Airmega 400
- CADR
- 328 cfm
- Room
- 513 ft²
- Quietest
- 22 dB
- Per year
- $168
Dual-filter design for big open spaces.
Medium rooms$399
Coway Airmega 250
- CADR
- 249 cfm
- Room
- 389 ft²
- Quietest
- 22 dB
- Per year
- $127
Mid-size Airmega with a washable pre-filter.
Medium rooms$220
Levoit Core 400S-P
- CADR
- 231 cfm
- Room
- 361 ft²
- Quietest
- 22 dB
- Per year
- $123
Round 360° design with an air-quality sensor.
Small rooms$150
Levoit Core 300S-P
- CADR
- 141 cfm
- Room
- 220 ft²
- Quietest
- 22 dB
- Per year
- $74
Bedroom-size bestseller with very low power use.
Large rooms$450
Blueair Blue Signature (Large)
- CADR
- 455 cfm
- Room
- 711 ft²
- Quietest
- 23 dB
- Per year
- $125
The highest smoke CADR here, in a furniture-style design.