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Winix NK105 replacement filter

Winix NK105 uses Filter N (part 112180) as its primary replacement filter set.

Winix NK105 filter match

Primary replacement filter set Filter N 112180
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View part details Official Winix source

All compatible part numbers

All compatible part numbers listed below are primary replacement filters for this model.

Filter Part number Role Source Marketplace
Filter N 112180 Primary replacement filter set Winix America Filter N - 112180 Check prices

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 N 112180

Official Winix America product page identifies Filter N, SKU 112180, as compatible with models NK100 and NK105.

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Replacement guidance
Winix sells this as a one-year replacement filter set and recommends changing it once every 12 months.
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Buying checklist

How to choose the right replacement

Match the Winix NK105 model label and the exact part number above. Marketplace listings can be OEM or aftermarket, and a similar-looking filter may have different dimensions.

Compare the listing title, product photos, included filter pieces, seller details, delivery estimate, and total price before you order.

Care guidance

Replacement schedule

  • Filter N 112180: Winix sells this as a one-year replacement filter set and recommends changing it once every 12 months.

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

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Frequently asked questions

What filter does the Winix NK105 use?

The Winix NK105 uses Filter N (112180). Each part number on this page is backed by an official Winix source.

How often should I replace the Winix NK105 filter?

Winix sells this as a one-year replacement filter set and recommends changing it once every 12 months.

Where can I check replacement filters for the Winix NK105?

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.