Choose InvisiClean Aura II for higher CADR and larger-room coverage and lower noise. Choose Blueair Blue Signature Small if you want Wi-Fi or app control.
Which purifier has higher CADR?
The InvisiClean Aura II has a smoke CADR of 171 CFM versus 160 CFM for the Blueair Blue Signature Small, a difference of 7%.
Which purifier is quieter?
InvisiClean Aura II is quieter (31 vs 50 dB).
Which purifier covers a larger room?
InvisiClean Aura II fits a larger room (about 265 vs 248 sq ft recommended from CADR).
Which purifier has better smart features?
Blueair Blue Signature Small lists Wi-Fi or app control; InvisiClean Aura II does not.
Which purifier has better filtration?
InvisiClean Aura II lists True HEPA with Activated Carbon Pre-Filter; Blueair Blue Signature Small lists HEPASilent.
Bottom line
Choose InvisiClean Aura II for higher CADR and larger-room coverage and lower noise. Choose Blueair Blue Signature Small if you want Wi-Fi or app control.
| Metric | InvisiClean Aura II | Blueair Blue Signature Small | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 171 CFM | 160 CFM | InvisiClean Aura II (+7%) |
| Recommended room size | 265 sq ft | 248 sq ft | InvisiClean Aura II (+7%) |
| Manufacturer claimed coverage | 1094 sq ft | 248 sq ft | — |
| Minimum noise | 31 dB | 50 dB | InvisiClean Aura II |
| Filter type | True HEPA with Activated Carbon Pre-Filter | HEPASilent | — |
| Power | [3, 10, 24, 62] | 20 W | — |
| Wi-Fi / app | No | Yes | — |
| Weight | 8.9 lb | 5.64 lb | — |