Exact model stated by the manufacturer

Coway Airmega 400S replacement filter

Documented OEM reference: Airmega 400 & 400S Max2 Filter Set · SKU 3104756

Coway names Airmega 400S alongside Airmega 400 for the Max2 Filter Set, SKU 3104756. The set contains two Max2 filters, one for each side of the purifier.

Limits. US-source compatibility statement only. It does not establish local stock, shipping, or warranty outside the source market, and it does not test aftermarket fit or performance.

Coway Airmega official product page · US ↗

Source market: US · Checked 2026-10-20. No stock, price, or seller claim is made. Fit is not filtration performance.

Other models listed for the same part

Coway Airmega 400

One part listed for several models does not make those purifiers interchangeable.

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Use this text to cite the page. The last-updated date is the date of the latest change to its content.

Filter Ledger. “US Coway Airmega 400S Replacement Filter”. https://filters.toolatlas.app/en-us/filters/coway-airmega-400s/. Last updated October 23, 2026.