Coway Airmega 200M vs Winix A231
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 We do not present unpublished laboratory or in-home measurements as our own testing.
Features and services can change, so confirm current details with the manufacturer before buying. Affiliate commissions do not determine our editorial criteria.
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 200M | Winix A231 |
|---|---|---|
| CADR | 246 / 249 / 277 CFM (Smoke / Dust / Pollen) | 147 / 149 / 154 CFM (Smoke / Dust / Pollen) |
| Coverage | 361 sq ft (4.8 ACH); 874 sq ft (2 ACH); 1,748 sq ft (1 ACH) | 230 sq ft (AHAM Verifide); up to 1,104 sq ft in 1 hour |
| Noise level | 24.4-55.1 dB(A) | 25 dB minimum |
| Power | 82 W | 55 W |
| Filter type | Pre-filter + deodorization filter + HEPA filter + bipolar device | 4-stage 360-degree: fine mesh pre-filter + True HEPA + activated carbon + PlasmaWave |
| Filter life | Deodorization filter 6 months; HEPA filter 12 months | True HEPA 12 months; activated carbon 12 months |
| Warranty | 1 year (parts); 3 years (motor and electronic parts) | 2 years |
| Dimensions | 16.8 x 18.3 x 9.6 in (W x H x D) | 9.5 x 9.5 x 14.6 in (W x D x H) |
| Weight | 12.3 lbs | 6.75 lbs |
| Origin | — | Thailand |