Choose FreAire B0HBJ3N8BD for higher CADR and larger-room coverage and lower noise.
Which purifier has higher CADR?
The FreAire B0HBJ3N8BD has a smoke CADR of 559 CFM versus 435 CFM for the Blueair Blue Pure 211i Max, a difference of 29%.
Which purifier is quieter?
FreAire B0HBJ3N8BD is quieter (22 vs 23 dB).
Which purifier covers a larger room?
FreAire B0HBJ3N8BD fits a larger room (about 866 vs 674 sq ft recommended from CADR).
Which purifier has better smart features?
Both list smart features (H13 HEPA filter, Covers up to 2,390 ft², Smart AQI display, Auto and sleep modes vs Captures 99.97% of particles as small as 0.1 microns, RealTrack technology for filter lifetime tracking, WiFi connectivity with smart features).
Which purifier has better filtration?
FreAire B0HBJ3N8BD lists HEPA; Blueair Blue Pure 211i Max lists HEPASilent.
Bottom line
Choose FreAire B0HBJ3N8BD for higher CADR and larger-room coverage and lower noise.
| Metric | FreAire B0HBJ3N8BD | Blueair Blue Pure 211i Max | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 559 CFM | 435 CFM | FreAire B0HBJ3N8BD (+29%) |
| Recommended room size | 866 sq ft | 674 sq ft | FreAire B0HBJ3N8BD (+28%) |
| Manufacturer claimed coverage | 2390 sq ft | 3235 sq ft | — |
| Minimum noise | 22 dB | 23 dB | FreAire B0HBJ3N8BD |
| Filter type | HEPA | HEPASilent | — |
| Replacement interval | 19 months | — | — |
| Power | 133.5 W | 46 W | — |
| Wi-Fi / app | Yes | Yes | — |
| Dimensions | 15D × 25W × 50H in | 22.7 × 14.4 × 14.4 in | — |
| Weight | 84 lb | 16.2 lb | — |