Our verdict
Pick the Winix 5500-2 True HEPA Air Purifier if it is the cheaper of the two on the day you buy. Pick the Winix 5520 if your room is larger and running cost matters.
The central trade-off
Rated room size. Winix 5520 Air Purifier: 1,882 square feet; Winix 5500-2 True HEPA Air Purifier: 360 square feet.
Power draw. Winix 5520 Air Purifier: 50 watts; Winix 5500-2 True HEPA Air Purifier: 70 watts.
Filters. Winix 5500-2 True HEPA Air Purifier: HEPA.
Filters. Winix 5520 Air Purifier: HEPA.
Side by side
| Specification | Winix 5500-2 True HEPA Air Purifier | Winix 5520 Air Purifier |
|---|---|---|
| Rated room size | 360 square feet | 1,882 sq ft |
| Smoke CADR | Not stated by the maker | Not stated by the maker |
| CADR | Not stated by the maker | Not stated by the maker |
| Quietest setting | Not stated by the maker | Not stated by the maker |
| Noise | 27.8 db | 27 db |
| Power draw | 70 watts | 50 watts |
| Filters | HEPA | HEPA |
| Warranty | Not stated by the maker | Not stated by the maker |
Values are the makers' published specifications. "Not stated" means the maker doesn't publish it.
Which should you choose?
Choose the Winix 5500-2 True HEPA Air Purifier if
- It is the cheaper of the two on the day you buy