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Primary replacement filter cassette

Winix Filter F 114290 replacement filter

Filter F (part 114290) fits Winix U450, according to the official Winix product page.

Official Winix fit · checked

Winix models that use Filter F 114290

This filter is listed for one model. Open a model to see its complete list of primary, optional, and specialty filters.

Before you order

What to check in a 114290 listing

  • The listing names part 114290. Similar-looking filters are not proof of fit.
  • Your purifier is one of the compatible models: Winix U450.
  • The pack size and pieces included match what you need. Genuine and third-party filters can differ.
  • The total price with shipping, seller feedback, and delivery estimate work for you.

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.

Official compatibility record

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 2026-08-29. Recheck the listing and your purifier label before ordering.