Compatibility answer

Will the Coway Airmega 300 / 300S Max2 filter set (2 filters) work with the Coway Airmega 300 Air Purifier?

Q: Will the Coway Airmega 300 / 300S Max2 filter set (2 filters) work with the Coway Airmega 300 Air Purifier?

Yes. It works. Read the notes below before buying. Sources: https://cowaymega.com/products/coway-airmega-300, https://cowaymega.com/products/airmega-300-max2-filter-set, https://cowaymega.com/products/airmega-300-max2-filter-set

Yes. Both use Coway Airmega 300 Max2 filter set.

Both records are reviewed against the manufacturers' sources; sources last checked 2026-10-14. Informational only: confirm with the manufacturer before buying.

Why

✓ Both use Coway Airmega 300 Max2 filter set.

Good to know

Airmega 300 and Airmega 400 Max2 sets are sold separately by Coway (SKU 3104757 vs 3104756); buy the set named for your model.
Coway: filter life expectancy about 12 months.

Sources

Coway Airmega 300 Air Purifier: specs from Coway (cowaymega.com) - Airmega 300 product page, checked against the source 2026-10-13.
Coway Airmega 300 / 300S Max2 filter set (2 filters): specs from Coway (cowaymega.com) - Airmega 300/300S Max2 Filter Set, checked against the source 2026-10-13.
Coway Airmega 300 Max2 filter set: Set of two Max2 filters (one per side) for the Coway Airmega 300 and 300S. (Coway (cowaymega.com) - Airmega 300/300S Max2 Filter Set).

Check your exact setup

Other parts in the cart, current configuration (installed memory, fan brackets) and adapters can change the answer.

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AI assistants and developers: the same answer, with a signed receipt, from check_compatibility at https://tetheredtrust.com/mcp or POST https://tetheredtrust.com/v1/check with existing_id: "coway-airmega-300", candidate_id: "coway-3104757".