Coway

Airmega 400S

Name: Coway Airmega 400S
Brand: Coway
SKU: Airmega 400S
Price: 749 USD
Availability: InStock

Model Airmega 400S

Verified compatibilityIn stock at last check

Image from cowaymega.com

Smart large-room purifier with two pre-filters, two Max2 filters, real-time monitoring, and mobile-app integration.

Product type: Air Purifier

Manufacturer product page

Check that the model number on your unit's rating label matches exactly, including hyphens and suffix letters. Similar models often take different filters.

Verified replacement filters

Coway

Airmega 400 Max2 Filter Set

3104756

True HEPA, Activated Carbon, Combination

Verified compatibilityOfficial OEM

Filter details and sellers

Where to buy the compatible filters

3104756

Coway
Airmega 400 Max2 Filter Set
$129.00
In stock at last check
Checked August 20, 2026
Buy at Coway(opens in a new tab)

Where to buy this purifier

Coway
Coway Airmega 400S
$749.00
In stock at last check
Checked August 22, 2026
Buy at Coway(opens in a new tab)

Prices and availability are shown as last recorded and can change at any time. Confirm both on the seller's page before ordering.

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