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Primary replacement filter set

Winix Filter N – 112180 replacement filter

Filter N (112180) fits Winix NK100 and Winix NK105 according to the cited Winix source.

Official manufacturer Filter N 112180 Check official Winix availability Non-affiliate link to the cited official product page.
Marketplace search Check eBay prices for 112180 Sponsored eBay links. We may earn a commission from qualifying purchases.

Quick fit check

Filter N fit and replacement facts

Part number112180
Compatible models2
Filter rolePrimary replacement filter set

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

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 NK100 Filter N 112180 Primary replacement filter set Winix America Filter N - 112180 Check prices
Winix NK105 Filter N 112180 Primary replacement filter set Winix America Filter N - 112180 Check prices

Buying checklist

What to check in a filter listing

Confirm that the listing names part 112180 and one of the compatible models: Winix NK100 and Winix NK105. 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 and recommends changing it once every 12 months.

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 N (112180)?

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

Which Winix models use the Filter N 112180?

According to the official Winix product page, Filter N (112180) fits Winix NK100 and Winix NK105. Verify the model label on your unit before ordering.

Do aftermarket 112180 filters work?

Marketplace listings may be from the manufacturer or a third party. Match the exact part number 112180, review the listing details, and verify the model label on your unit before buying.

Manufacturer source

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

Winix America Filter N - 112180

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