Choose Blueair Blue Signature for higher CADR and larger-room coverage, lower noise, and Wi-Fi or app control.
Which purifier has higher CADR?
The Blueair Blue Signature has a smoke CADR of 455 CFM versus 243 CFM for the Winix 5500-2, a difference of 87%.
Which purifier is quieter?
Blueair Blue Signature is quieter (23 vs 27 dB).
Which purifier covers a larger room?
Blueair Blue Signature fits a larger room (about 705 vs 377 sq ft recommended from CADR).
Which purifier has better smart features?
Blueair Blue Signature lists Wi-Fi or app control; Winix 5500-2 does not.
Which purifier has better filtration?
Blueair Blue Signature lists HEPASilent; Winix 5500-2 lists True HEPA + PlasmaWave.
Bottom line
Choose Blueair Blue Signature for higher CADR and larger-room coverage, lower noise, and Wi-Fi or app control.
| Metric | Blueair Blue Signature | Winix 5500-2 | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 455 CFM | 243 CFM | Blueair Blue Signature (+87%) |
| Recommended room size | 705 sq ft | 377 sq ft | Blueair Blue Signature (+87%) |
| Manufacturer claimed coverage | 3385 sq ft | — | — |
| Minimum noise | 23 dB | 27 dB | Blueair Blue Signature |
| Filter type | HEPASilent | True HEPA + PlasmaWave | — |
| Power | 42 W | — | — |
| Wi-Fi / app | Yes | No | — |
| Dimensions | 17.2 × 15.5 × 15.5 in | — | — |
| Weight | 13.2 lb | — | — |