Choose Blueair Blue Pure 211i Max for higher CADR and larger-room coverage. Choose Frigidaire FHAP2040A1 if you want lower noise.
Which purifier has higher CADR?
The Blueair Blue Pure 211i Max has a smoke CADR of 435 CFM versus 227 CFM for the Frigidaire FHAP2040A1, a difference of 92%.
Which purifier is quieter?
Frigidaire FHAP2040A1 is quieter (20 vs 23 dB).
Which purifier covers a larger room?
Blueair Blue Pure 211i Max fits a larger room (about 674 vs 352 sq ft recommended from CADR).
Which purifier has better smart features?
Both list smart features (Captures 99.97% of particles as small as 0.1 microns, RealTrack technology for filter lifetime tracking, WiFi connectivity with smart features vs 3-stage filtration, Wi‑Fi enabled, Smart Mode, Air Quality Monitoring).
Which purifier has better filtration?
Blueair Blue Pure 211i Max lists HEPASilent; Frigidaire FHAP2040A1 lists HEPA.
Bottom line
Choose Blueair Blue Pure 211i Max for higher CADR and larger-room coverage. Choose Frigidaire FHAP2040A1 if you want lower noise.
| Metric | Blueair Blue Pure 211i Max | Frigidaire FHAP2040A1 | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 435 CFM | 227 CFM | Blueair Blue Pure 211i Max (+92%) |
| Recommended room size | 674 sq ft | 352 sq ft | Blueair Blue Pure 211i Max (+91%) |
| Manufacturer claimed coverage | 3235 sq ft | 1685 sq ft | — |
| Minimum noise | 23 dB | 20 dB | Frigidaire FHAP2040A1 |
| Filter type | HEPASilent | HEPA | — |
| Replacement interval | — | 12 months | — |
| Power | 46 W | — | — |
| Wi-Fi / app | Yes | Yes | — |
| Dimensions | 22.7 × 14.4 × 14.4 in | — | — |
| Weight | 16.2 lb | — | — |