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Primary replacement filter cassette

Winix Filter F – 114290 replacement filter

Filter F (114290) fits Winix U450 according to the cited Winix source.

Official manufacturer Filter F 114290 Check official Winix availability Non-affiliate link to the cited official product page.
Marketplace search Check eBay prices for 114290 Sponsored eBay links. We may earn a commission from qualifying purchases.

Quick fit check

Filter F fit and replacement facts

Part number114290
Compatible models1
Filter rolePrimary replacement filter cassette

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 Winix models

Follow a model link for its complete primary, optional, specialty, and alternative filter list.

Model Filter Part number Role Source Marketplace
Winix U450 Filter F 114290 Primary replacement filter cassette Winix America Filter F - 114290 Check prices

Buying checklist

What to check in a filter listing

Confirm that the listing names part 114290 and one of the compatible models: Winix U450. Similar-looking filters are not proof of fit.

Decide whether you want an OEM or aftermarket filter, then compare the included pieces, product photos, seller details, delivery estimate, and total price.

Care guidance

Replacement schedule

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.

Usage conditions can affect service life. Follow the cited manufacturer guidance for this part.

Frequently 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.

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.

Do aftermarket 114290 filters work?

Marketplace listings may be from the manufacturer or a third party. Match the exact part number 114290, review the listing details, and verify the model label on your unit before buying.

Manufacturer source

Official Winix America product page identifies Filter F, SKU 114290, as compatible with model U450.

Winix America Filter F - 114290

Source compatibility checked 2026-05-24. Recheck the listing and your purifier label before ordering.