Choose Alen 45i for Wi-Fi or app control. Choose Honeywell HPA125B if you want lower noise.
Which purifier has higher CADR?
The Alen 45i has a smoke CADR of 255 CFM versus 250 CFM for the Honeywell HPA125B, a difference of 2%.
Which purifier is quieter?
Honeywell HPA125B is quieter (21 vs 23 dB).
Which purifier covers a larger room?
Alen 45i fits a larger room (about 395 vs 388 sq ft recommended from CADR).
Which purifier has better smart features?
Alen 45i lists Wi-Fi or app control; Honeywell HPA125B does not.
Which purifier has better filtration?
Both list HEPA filtration.
Bottom line
Choose Alen 45i for Wi-Fi or app control. Choose Honeywell HPA125B if you want lower noise.
| Metric | Alen 45i | Honeywell HPA125B | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 255 CFM | 250 CFM | Alen 45i (+2%) |
| Recommended room size | 395 sq ft | 388 sq ft | Alen 45i (+2%) |
| Manufacturer claimed coverage | 1900 sq ft | 530 sq ft | — |
| Minimum noise | 23 dB | 21 dB | Honeywell HPA125B |
| Filter type | HEPA | HEPA | — |
| Wi-Fi / app | Yes | No | — |
| Weight | 14 lb | 2.1 lb | — |