Primary replacement filter cassette
Winix Filter F – 114290 replacement filter
Fits U450. Winix sells this as a one-year replacement filter set: replace the set every 12 months. The included AOC carbon filter is washable during that period.
Compatible models
| Model | Filter | Part number | Role | Source | Marketplace |
|---|---|---|---|---|---|
| Winix U450 | Filter F | 114290 |
Primary replacement filter cassette | Winix America Filter F - 114290 | Check prices |
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Filter F 114290
Start with the exact part number, then narrow by compatible model if needed.
Check eBay prices for 114290Frequently asked questions
How often should I replace the Winix Filter F (114290)?
Winix sells this as a one-year replacement filter set: replace the set every 12 months. The included AOC carbon filter is washable during that period. The Filter Replacement Indicator LED on the unit also illuminates when a filter change is due.
Which Winix models use the Filter F 114290?
According to the official Winix product page, Filter F (114290) fits Winix U450. Verify the model label on your unit before ordering.
Is the Filter F (114290) washable?
Partially. The AOC carbon filter included with Filter F (114290) is washable per Winix; filter performance may decrease after each wash. The True HEPA filter is not washable and must be replaced. The fine-mesh pre-filter built into the unit is permanent and only needs cleaning.
Do aftermarket 114290 filters work?
Marketplace listings include both genuine Winix and aftermarket filters. Aftermarket filters are usually cheaper, but Winix states its limited warranty is voided if non-Winix brand filters are used in the unit. Match the exact part number 114290 and check seller details before buying.
Source
Official Winix America product page identifies Filter F, SKU 114290, as compatible with model U450.