Winix Replacement Filters
Winix filters are model-specific, so start with the model number on your purifier. Common examples include Filter H (116130) for the 5500-2, Filter S for the C545, and the combined filter pack for the C535 and C909, which Costco also sells as a 2-pack.
Winix filter guide
- 5500-2: Filter H combines a true HEPA filter with a washable AOC carbon filter.
- C545: Filter S for this compact model.
- C535 and C909: these share a filter pack. Costco sells a 2-pack.
- 5510 and newer models: check the filter letter or part number in the manual.
- Change interval: Winix typically suggests replacing the HEPA filter about every 12 months, and cleaning the pre-filter regularly.
- Reset the filter indicator after replacing.
Compare Winix Air Purifiers to see which models share filters, and Costco Air Purifier Filters for warehouse packs.
FAQs
What filter does the Winix 5500-2 use?
The Winix 5500-2 uses Winix Replacement Filter H, part number 116130, which includes a true HEPA filter and an activated carbon filter. Check the label on your unit, since newer models such as the 5510 may use a different filter.
How often should I change Winix filters?
Winix generally recommends replacing the true HEPA filter about every 12 months and the carbon filter as directed for your model, sooner with smoke or pets. Vacuum the fine mesh pre-filter about every two weeks. Follow the filter indicator and reset it after replacement.
Do Winix C909 and C535 use the same filter?
Yes. The Winix C535 and C909 share the same replacement filter set, which Costco sells as a 2-pack. Always check the part number on your existing filter or in the manual to confirm before buying, since other Winix models use different filters.
