Choose Honeywell HPA125B for lower noise.
Which purifier has higher CADR?
The Honeywell HPA125B has a smoke CADR of 250 CFM versus 243 CFM for the Winix 5500-2, a difference of 3%.
Which purifier is quieter?
Honeywell HPA125B is quieter (21 vs 27 dB).
Which purifier covers a larger room?
Honeywell HPA125B fits a larger room (about 388 vs 377 sq ft recommended from CADR).
Which purifier has better smart features?
Neither lists Wi-Fi or app control in our sources.
Which purifier has better filtration?
Honeywell HPA125B lists HEPA; Winix 5500-2 lists True HEPA + PlasmaWave.
Bottom line
Choose Honeywell HPA125B for lower noise.
| Metric | Honeywell HPA125B | Winix 5500-2 | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 250 CFM | 243 CFM | Honeywell HPA125B (+3%) |
| Recommended room size | 388 sq ft | 377 sq ft | Honeywell HPA125B (+3%) |
| Manufacturer claimed coverage | 530 sq ft | — | — |
| Minimum noise | 21 dB | 27 dB | Honeywell HPA125B |
| Filter type | HEPA | True HEPA + PlasmaWave | — |
| Wi-Fi / app | No | No | — |
| Weight | 2.1 lb | — | — |