Choose Blueair Blue Pure 511i Max for lower noise and Wi-Fi or app control.
Which purifier has higher CADR?
The Blueair Blue Pure 511i Max has a smoke CADR of 174 CFM versus 171 CFM for the InvisiClean Aura II, a difference of 2%.
Which purifier is quieter?
Blueair Blue Pure 511i Max is quieter (19 vs 31 dB).
Which purifier covers a larger room?
Blueair Blue Pure 511i Max fits a larger room (about 270 vs 265 sq ft recommended from CADR).
Which purifier has better smart features?
Blueair Blue Pure 511i Max lists Wi-Fi or app control; InvisiClean Aura II does not.
Which purifier has better filtration?
Blueair Blue Pure 511i Max lists HEPASilent; InvisiClean Aura II lists True HEPA with Activated Carbon Pre-Filter.
Bottom line
Choose Blueair Blue Pure 511i Max for lower noise and Wi-Fi or app control.
| Metric | Blueair Blue Pure 511i Max | InvisiClean Aura II | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 174 CFM | 171 CFM | Blueair Blue Pure 511i Max (+2%) |
| Recommended room size | 270 sq ft | 265 sq ft | Blueair Blue Pure 511i Max (+2%) |
| Manufacturer claimed coverage | 465 sq ft | 1094 sq ft | — |
| Minimum noise | 19 dB | 31 dB | Blueair Blue Pure 511i Max |
| Filter type | HEPASilent | True HEPA with Activated Carbon Pre-Filter | — |
| Power | 17 W | [3, 10, 24, 62] | — |
| Wi-Fi / app | Yes | No | — |
| Weight | 4.2 lb | 8.9 lb | — |