Choose Honeywell HPA125B if you want lower noise.
Which purifier has higher CADR?
Honeywell HPA125B has published CADR; Honeywell HEPA Air Purifier does not.
Which purifier is quieter?
Honeywell HPA125B is quieter (21 vs 60 dB).
Which purifier covers a larger room?
Honeywell HPA125B is recommended for about 388 sq ft based on CADR.
Which purifier has better smart features?
Neither lists Wi-Fi or app control in our sources.
Which purifier has better filtration?
Both list HEPA filtration.
Bottom line
Choose Honeywell HPA125B if you want lower noise.
| Metric | Honeywell HEPA Air Purifier | Honeywell HPA125B | Difference / Winner |
|---|---|---|---|
| Smoke CADR | — | 250 CFM | — |
| Recommended room size | — | 388 sq ft | — |
| Manufacturer claimed coverage | 2423 sq ft | 530 sq ft | — |
| Minimum noise | 60 dB | 21 dB | Honeywell HPA125B |
| Filter type | HEPA | HEPA | — |
| Wi-Fi / app | No | No | — |
| Weight | 20.5 lb | 2.1 lb | — |