Primary replacement filter set
Winix Filter N – 112180 replacement filter
Fits NK100, NK105. Winix sells this as a one-year replacement filter set and recommends changing it once every 12 months.
Compatible models
| 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 |
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Filter N 112180
Start with the exact part number, then narrow by compatible model if needed.
Check eBay prices for 112180Model-specific searches
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. The Filter Replacement Indicator LED on the unit also illuminates when a filter change is due.
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.
Is the Filter N (112180) washable?
No. Winix does not describe Filter N (112180) as washable; replace it on schedule. Only the fine-mesh pre-filter built into the unit is permanent and washable.
Do aftermarket 112180 filters work?
Marketplace listings include both genuine Winix and aftermarket filters. Aftermarket filters are usually cheaper, but Winix states its limited warranty is voided if non-Winix brand filters are used in the unit. Match the exact part number 112180 and check seller details before buying.
Source
Official Winix America product page identifies Filter N, SKU 112180, as compatible with models NK100 and NK105.