Winix Replacement Air Filters Only $60 at Costco

Updated August 28, 2026

Looking for a reliable way to keep your Winix air purifier humming? Costco is offering a 2‑pack of genuine Winix replacement air filters for just $60, and shipping is free. This deal gives you the focus keyword you need to find the right filter without overpaying.

Why this air filter deal stands out

• Exact fit for Winix C545, C535, and C909 models – no guessing.
• Each pack contains two high‑efficiency filters, covering a full year of use for most households.
• Free shipping removes any extra cost, making it a true savings opportunity.

How to grab the deal at Costco

1. Click the “SHOP HERE” button above to add the 2‑pack to your cart.
2. Complete your purchase and enjoy fast delivery to your door.

Savings tips & price context

Costco members already benefit from bulk pricing, and this filter pack is no exception. If you’re a Costco shopper, you also avoid extra fees that many online stores add for shipping. Since this deal is already under that threshold, you’re covered without needing to add anything else to your cart.

FAQ

Do these filters work with all Winix models?

The pack is listed for C545, C535, and C909 units. If you own a different Winix model, check the filter size in your user manual before buying.

How often should I replace the filters?

Winix recommends changing filters every 6‑12 months, depending on usage and indoor air quality. Two filters give you a full year’s coverage for most homes.

Is the free shipping limited to U.S. addresses?

Free shipping applies to standard U.S. deliveries. International orders may incur additional fees (verify before buying).Ready to keep your indoor air clean without breaking the bank? Grab the Costco Winix replacement air filters today and enjoy fresh, filtered air at a fraction of the usual cost. For more household savings, check out our household essentials deals.

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