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.
Cheapest air purifiers to run
Lowest yearly filter + electricity cost per cfm of cleaning.
Large rooms$255
Blueair Blue Pure 311i+ Max
- CADR
- 339 cfm
- Room
- 530 ft²
- Quietest
- 23 dB
- Per year
- $89
High output for a mid-priced unit.
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.
Large rooms$350
Blueair Blue Pure 211i Max
- CADR
- 435 cfm
- Room
- 680 ft²
- Quietest
- 23 dB
- Per year
- $121
Among the highest CADRs here at a moderate price.
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.
Large rooms$300
Levoit Core 600S-P
- CADR
- 391 cfm
- Room
- 611 ft²
- Quietest
- 26 dB
- Per year
- $149
Large-room Levoit with nearly 400 cfm.
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).
Medium rooms$240
Coway Airmega Mighty AP-1512HH
- CADR
- 233 cfm
- Room
- 364 ft²
- Quietest
- 24 dB
- Per year
- $106
The long-running favorite with a proven track record; no app.
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.
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$190
Levoit Vital 200S-P
- CADR
- 250 cfm
- Room
- 391 ft²
- Quietest
- 23 dB
- Per year
- $130
Strong output per dollar for living rooms and pets.
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.
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.
Medium rooms$256
Blueair DustMagnet 5440i
- CADR
- 216 cfm
- Room
- 338 ft²
- Quietest
- 31 dB
- Per year
- $135
Doubles as a side table; pulls in dust before it settles.
Large rooms$500
Levoit EverestAir-P
- CADR
- 354 cfm
- Room
- 553 ft²
- Quietest
- 24 dB
- Per year
- $242
Slim, wall-friendly design with a laser dust sensor.
Small rooms$120
Levoit Vital 100S-P
- CADR
- 143 cfm
- Room
- 223 ft²
- Quietest
- 23 dB
- Per year
- $101
Similar output to the Core 300S-P for less money.
Small rooms$75
Levoit Core 200S-P
- CADR
- 90 cfm
- Room
- 141 ft²
- Quietest
- 27 dB
- Per year
- $74
Small-room smart purifier; the cheapest way into app control.