Blueair Blue Signature moves more air (CADR) and covers a larger room than Dreame AirPursue PM20.
Which purifier has higher CADR?
Blueair Blue Signature has higher CADR (455 vs 400 CFM).
Which purifier is quieter?
Blueair Blue Signature is quieter (23 vs 60 dB).
Which purifier covers a larger room?
Blueair Blue Signature fits a larger room (about 705 vs 620 sq ft recommended from CADR).
Which purifier has better smart features?
Blueair Blue Signature lists Wi-Fi or app control; Dreame AirPursue PM20 does not.
Which purifier has longer filter life?
Blueair Blue Signature lists a replacement interval of 179.99; Dreame AirPursue PM20 does not.
Bottom line
Blueair Blue Signature moves more air (CADR) and covers a larger room than Dreame AirPursue PM20.
| Metric | Blueair Blue Signature | Dreame AirPursue PM20 |
|---|---|---|
| CADR (smoke) | 455 CFM | 400 CFM |
| Recommended room size | 705 sq ft | 620 sq ft |
| Claimed coverage | 3385 sq ft | 7534 sq ft |
| Noise | 23 dB | 60 dB |
| Filter type | HEPASilent | HEPA-13, carbon, NANO filter, charcoal filter, photocatalyst UV lamp |
| Filter interval | 179.99 | — |
| Smart features | None | None |