Medify MA-40 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 We do not present unpublished laboratory or in-home measurements as our own testing.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.
Medify MA-40
Medify
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Winix A231
Winix
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Feature comparison
| Feature | Medify MA-40 | Winix A231 |
|---|---|---|
| Coverage | 373 sq ft (4.8 ACH, AHAM Verifide) | 230 sq ft (AHAM Verifide) |
| CADR | 239 / 231 / 240 CFM (Smoke / Dust / Pollen) | 147 / 149 / 154 CFM (Smoke / Dust / Pollen) |
| Filter type | 3-stage pre-filter + H13 True HEPA + activated carbon composite | 360-degree pre-filter + True HEPA + activated carbon + PlasmaWave |
| Noise level | 40-53 dB (rated); up to 66 dB measured by HouseFresh | 25 dB minimum |
| Weight | 17.5 lbs | 6.75 lbs |