Choose Winix 5520 for Wi-Fi or app control. Choose Winix 5500-2 if you want lower noise.
Which purifier has higher CADR?
The Winix 5520 has a smoke CADR of 252 CFM versus 243 CFM for the Winix 5500-2, a difference of 4%.
Which purifier is quieter?
Winix 5500-2 is quieter (27 vs 40 dB).
Which purifier covers a larger room?
Winix 5520 fits a larger room (about 391 vs 377 sq ft recommended from CADR).
Which purifier has better smart features?
Winix 5520 lists Wi-Fi or app control; Winix 5500-2 does not.
Which purifier has better filtration?
Winix 5520 lists True HEPA, AOC™ Carbon; Winix 5500-2 lists True HEPA + PlasmaWave.
Bottom line
Choose Winix 5520 for Wi-Fi or app control. Choose Winix 5500-2 if you want lower noise.
| Metric | Winix 5520 | Winix 5500-2 | Difference / Winner |
|---|---|---|---|
| Smoke CADR | 252 CFM | 243 CFM | Winix 5520 (+4%) |
| Recommended room size | 391 sq ft | 377 sq ft | Winix 5520 (+4%) |
| Manufacturer claimed coverage | 1882 sq ft | — | — |
| Minimum noise | 40 dB | 27 dB | Winix 5500-2 |
| Filter type | True HEPA, AOC™ Carbon | True HEPA + PlasmaWave | — |
| Power | 50 W | — | — |
| Wi-Fi / app | Yes | No | — |
| Dimensions | 13.59 × 8.27 × 22.17 in | — | — |
| Weight | 13.3 lb | — | — |