Appliance · Coway

Coway Airmega 400S Smart Air Purifier

verified 2026-10-13 Specs from Coway (cowaymega.com) - Airmega 400S product page. Also known as: airmega 400s, coway airmega 400s.

Specs

typeportable air purifier
coverage sq ft 1ach3120
coverage sq ft 2ach1560

Takes

  • purifier filter Coway Airmega 400 Max2 filter set
    Set of two Max2 filters (one per side) for the Coway Airmega 400 and 400S.

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Good to know
  • Not the same as the Airmega 300/300S Max2 set (SKU 3104757).
  • Coway: filter life expectancy about 12 months.

What fits the Coway Airmega 400S Smart Air Purifier?

1 parts and accessories in the graph work with this model. OEM parts first.

purifier filter

Informational only. Confirm with the manufacturer before buying or installing. Spotted a mistake? Report it.