Winix replacement filter guide: match model to part

Start with your purifier’s full model number, then find its filter letter and part number below. Filter letters identify different replacement products; a higher letter does not mean a better filter.

Three names to check carefully

The original 5500 and 5300-2 use Filter A, part 115115. The 5500-2 uses Filter H, part 116130. Neither “5500” nor “-2” alone is enough to choose a replacement.

Compare 5500 and 5500-2 filter sets →

Compare package contents before prices

A filter set can contain one HEPA filter plus several carbon replacements. Count each type separately when comparing offers. Open your model page for package details and buying links, including clearly identified third-party options where available.

Winix models by filter family

This is our current US-market catalog, not every Winix purifier. If your full model number is missing, check with Winix before choosing a similar name.

← Find another model