Our verdict
Pick the Winix D480 if your room is larger. Pick the Winix C545 if it is the cheaper of the two on the day you buy.
The central trade-off
Rated room size. Winix D480 Air Purifier: 498 sq ft (AHAM); Winix C545 Air Purifier: 360 square feet.
Filters. Winix D480 Air Purifier: Washable pre-filter, activated carbon filter and True HEPA filter.
Filters. Winix C545 Air Purifier: Pre-Filter.
Side by side
| Specification | Winix D480 Air Purifier | Winix C545 Air Purifier |
|---|---|---|
| Rated room size | 498 sq ft (AHAM) | 360 square feet |
| 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 | Not stated by the maker | 27 db |
| Power draw | Not stated by the maker | Not stated by the maker |
| Filters | Washable pre-filter, activated carbon filter and True HEPA filter | Pre-Filter |
| Warranty | 1 year | Not stated by the maker |
Values are the makers' published specifications. "Not stated" means the maker doesn't publish it.