Coway Airmega 400S vs Dyson Purifier Cool
Side-by-side comparison based on published product information. Check Amazon for current price and availability.
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We compare published manufacturer specifications, manuals, support policies, and relevant public guidance. We do not present unpublished laboratory or in-home measurements as our own testing.
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Use the feature table below to match published specifications to your room, filtration, and noise requirements. We do not assign an overall score without retained independent test evidence.
Dyson Purifier Cool
Dyson
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Feature comparison
| Feature | Coway Airmega 400S | Dyson Purifier Cool |
|---|---|---|
| Coverage | 492 sq ft (4.8 ACH) | 800+ sq ft |
| CADR | 328 / 328 / 400 CFM (Smoke / Dust / Pollen) | Not disclosed |
| Filter type | Dual washable pre-filter + Max2 filter set (activated carbon + True HEPA) | HEPA H13 + Activated Carbon |
| Noise level | 22-52 dB (rated) | 38-61 dB |
| Weight | 24.7 lbs | 10.2 lbs |