Coway Airmega 400S vs Winix 5510
Side-by-side comparison based on published product information. Check Amazon for current price and availability.
How we evaluate products
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 We do not present unpublished laboratory or in-home measurements as our own testing.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.
Feature comparison
| Feature | Coway Airmega 400S | Winix 5510 |
|---|---|---|
| CADR | 328 / 328 / 400 CFM (Smoke / Dust / Pollen) | 253 / 252 / 247 CFM (Smoke / Dust / Pollen, AHAM Verifide) |
| Coverage | 1,560 sq ft (2 ACH); 3,120 sq ft (1 ACH) | 392 sq ft (AHAM Verifide); 1,882 sq ft max room size (1 ACH) |
| Noise level | 22-52 dB(A) | — |
| Power | 66 W | 65 W |
| Filter type | 2 washable pre-filters + Max2 filter set (activated carbon + HEPA) | 4-stage: fine mesh pre-filter + AOC carbon + True HEPA + PlasmaWave |
| Filter life | Max2 filter set 1 year; pre-filters washable | True HEPA 12 months; AOC carbon 12 months |
| Warranty | 1 year (parts); 5 years (motor and electronic parts) | 2 years |
| Dimensions | 14.8 x 22.8 x 14.8 in (W x H x D) | 13.59 x 8.27 x 22.17 in (W x D x H) |
| Weight | 24.7 lbs | 13.3 lbs |
| Origin | — | South Korea |