Dyson Purifier Cool 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 We do not present unpublished laboratory or in-home measurements as our own testing.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 | Dyson Purifier Cool | Winix A231 |
|---|---|---|
| CADR | Not disclosed | 147 / 149 / 154 CFM (Smoke / Dust / Pollen) |
| Noise level | Up to 46 dB (purifier mode, speed 4); up to 61.4 dB (fan mode, max flow) | 25 dB minimum |
| Power | 6-40 W input; standby under 0.5 W | 55 W |
| Filter type | 360-degree glass HEPA H13 + activated carbon filter (fully sealed to HEPA H13) | 4-stage 360-degree: fine mesh pre-filter + True HEPA + activated carbon + PlasmaWave |
| Filter life | 12 months or when notified (6 months at 24h/day use) | True HEPA 12 months; activated carbon 12 months |
| Warranty | 2-year | 2 years |
| Dimensions | 41 x 8 x 4.72 in (H x W x D) | 9.5 x 9.5 x 14.6 in (W x D x H) |
| Weight | 11 lbs | 6.75 lbs |
| Coverage | — | 230 sq ft (AHAM Verifide); up to 1,104 sq ft in 1 hour |
| Origin | — | Thailand |