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 365 CFM for the Blueair Blue Pure 311i Max, a difference of 53%.
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 566 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 Removes 99.97% of airborne particles down to 0.1 microns, WiFi connectivity and auto-mode, LED air quality indicator, Ultra-quiet performance).
Which purifier has better filtration?
FreAire B0HBJ3N8BD lists HEPA; Blueair Blue Pure 311i Max lists HEPASilent.
Bottom line
Choose FreAire B0HBJ3N8BD for higher CADR and larger-room coverage and lower noise.
| Metric | FreAire B0HBJ3N8BD | Blueair Blue Pure 311i Max | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 559 CFM | 365 CFM | FreAire B0HBJ3N8BD (+53%) |
| Recommended room size | 866 sq ft | 566 sq ft | FreAire B0HBJ3N8BD (+53%) |
| Manufacturer claimed coverage | 2390 sq ft | 2107 sq ft | — |
| Minimum noise | 22 dB | 23 dB | FreAire B0HBJ3N8BD |
| Filter type | HEPA | HEPASilent | — |
| Replacement interval | 19 months | 9 months | — |
| Power | 133.5 W | 32 W | — |
| Wi-Fi / app | Yes | Yes | — |
| Dimensions | 15D × 25W × 50H in | 19 × 12.5 × 12.5 in | — |
| Weight | 84 lb | 7.8 lb | — |