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Primary replacement filter set

Winix Filter B 114190 replacement filter

Filter B (part 114190) fits Winix 9500 and Winix U300, according to the official Winix product page.

Official Winix fit · checked

Winix models that use Filter B 114190

This filter is listed for 2 models. Open a model to see its complete list of primary, optional, and specialty filters.

Before you order

What to check in a 114190 listing

  • The listing names part 114190. Similar-looking filters are not proof of fit.
  • Your purifier is one of the compatible models: Winix 9500 and Winix U300.
  • 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 B (114190)?

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 B 114190?

According to the official Winix product page, Filter B (114190) fits Winix 9500 and Winix U300. Verify the model label on your unit before ordering.

Do aftermarket 114190 filters work?

Marketplace listings may be from the manufacturer or a third party. Match the exact part number 114190, 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 B, SKU 114190, as compatible with models 9500 and U300.

Winix America Filter B - 114190

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