Blueair Blue Signature moves more air (CADR) and covers a larger room than Blueair 2-in-1 Pro Purify + Humidify.
Which purifier has higher CADR?
Blueair Blue Signature has higher CADR (455 vs 235 CFM).
Which purifier is quieter?
Blueair 2-in-1 Pro Purify + Humidify is quieter (20 vs 23 dB).
Which purifier covers a larger room?
Blueair Blue Signature fits a larger room (about 705 vs 364 sq ft recommended from CADR).
Which purifier has better smart features?
Blueair Blue Signature lists Wi-Fi or app control; Blueair 2-in-1 Pro Purify + Humidify does not.
Which purifier has longer filter life?
Blueair Blue Signature lists a replacement interval of 179.99; Blueair 2-in-1 Pro Purify + Humidify does not.
Bottom line
Blueair Blue Signature moves more air (CADR) and covers a larger room than Blueair 2-in-1 Pro Purify + Humidify.
| Metric | Blueair Blue Signature | Blueair 2-in-1 Pro Purify + Humidify |
|---|---|---|
| CADR (smoke) | 455 CFM | 235 CFM |
| Recommended room size | 705 sq ft | 364 sq ft |
| Claimed coverage | 3385 sq ft | 391 sq ft |
| Noise | 23 dB | 20 dB |
| Filter type | HEPASilent | HEPASilent |
| Filter interval | 179.99 | — |
| Smart features | None | None |