Winix model lookup
Winix NK105 replacement filter
Check the model label and the cited source before ordering.
Part numbers
| Model | Filter | Part number | Role | Source | Marketplace |
|---|---|---|---|---|---|
| Winix NK105 | Filter N | 112180 |
Primary replacement filter set | Winix America Filter N - 112180 | Check prices |
Compatibility notes
This page uses factual model and part-number references from cited sources. It does not imply manufacturer affiliation or approval.
Marketplace results can include OEM and aftermarket listings. Match the part number, model number, and listing details before purchase.
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Filter N 112180
Check eBay prices for 112180Frequently 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. The Filter Replacement Indicator LED on the unit also illuminates when a filter change is due.
Where can I buy a replacement filter for the Winix NK105?
Genuine filters are sold on the official Winix America site (linked in the source column), and both genuine and aftermarket filters are listed on eBay. Match the exact part number before buying; Winix states its warranty is voided by non-Winix filters.