Choose Dreame AirPursue PM20 for higher CADR and larger-room coverage. Choose Winix 5500-2 if you want lower noise.
Which purifier has higher CADR?
The Dreame AirPursue PM20 has a smoke CADR of 400 CFM versus 243 CFM for the Winix 5500-2, a difference of 65%.
Which purifier is quieter?
Winix 5500-2 is quieter (27 vs 60 dB).
Which purifier covers a larger room?
Dreame AirPursue PM20 fits a larger room (about 620 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?
Dreame AirPursue PM20 lists HEPA-13, carbon, NANO filter, charcoal filter, photocatalyst UV lamp; Winix 5500-2 lists True HEPA + PlasmaWave.
Bottom line
Choose Dreame AirPursue PM20 for higher CADR and larger-room coverage. Choose Winix 5500-2 if you want lower noise.
| Metric | Dreame AirPursue PM20 | Winix 5500-2 | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 400 CFM | 243 CFM | Dreame AirPursue PM20 (+65%) |
| Recommended room size | 620 sq ft | 377 sq ft | Dreame AirPursue PM20 (+64%) |
| Manufacturer claimed coverage | 7534 sq ft | — | — |
| Minimum noise | 60 dB | 27 dB | Winix 5500-2 |
| Filter type | HEPA-13, carbon, NANO filter, charcoal filter, photocatalyst UV lamp | True HEPA + PlasmaWave | — |
| Wi-Fi / app | No | No | — |
| Dimensions | 14.9 × 14.9 × 33.4 in | — | — |