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Winix air purifier

Winix U450 replacement filter

Winix U450 uses Filter F (part 114290) as its primary replacement filter set.

Official Winix fit · checked

All compatible Winix U450 filters

Every part number below is a primary replacement filter for this model.

Filter Part number Type Price
Filter F 114290 Primary replacement filter cassette Check price

Price links open sponsored eBay searches for the exact part number.

Before you order

How to buy the right Winix U450 filter

  • Confirm the label on your purifier reads U450.
  • Make sure the listing names part 114290, not just a similar-looking filter.
  • Check the pack size and pieces included. Genuine and third-party filters can differ.
  • Compare the total price with shipping, plus the seller's feedback and delivery estimate.

Care guidance

Replacement schedule

  • 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.

Usage and air quality can affect service life. Follow the cited manufacturer guidance for each part.

Frequently asked questions

What filter does the Winix U450 use?

The Winix U450 uses Filter F (114290). Each part number on this page is backed by an official Winix source.

How often should I replace the Winix U450 filter?

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.

Where can I check replacement filters for the Winix U450?

This page links directly to the cited official Winix product page and shows sponsored individual eBay listings when a fresh exact-part snapshot is available, with an exact-part eBay search fallback. This site does not sell filters; match the part number and review the current source or seller listing before buying.

Official compatibility record

Manufacturer evidence

Each compatibility and care statement below is reproduced from the cited official manufacturer record. Check the source again before ordering.

Filter F 114290

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

Source checked
Replacement guidance
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.
Guidance checked

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