Shark HP152 NeverChange 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 We do not present unpublished laboratory or in-home measurements as our own testing.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.
Shark HP152 NeverChange
Shark
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Winix A231
Winix
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Feature comparison
| Feature | Shark HP152 NeverChange | Winix A231 |
|---|---|---|
| Coverage | About 145 sq ft (4.8 ACH); 650 sq ft at 1 ACH | 230 sq ft (AHAM Verifide) |
| CADR | 97 CFM | 147 / 149 / 154 CFM (Smoke / Dust / Pollen) |
| Filter type | 4-stage: washable Debris Defense pre-filter + pet layer + NanoSeal HEPA + Odor Neutralizer carbon cartridge | 360-degree pre-filter + True HEPA + activated carbon + PlasmaWave |
| Filter life | NanoSeal HEPA up to 5 years; Odor Neutralizer cartridge every 3-6 months | — |
| Noise level | 40-62 dBA (AirPurifierFirst); 32-49 dB (TechGearLab) | 25 dB minimum |
| Power | 26W at max speed | — |
| Weight | 7.25 lbs | 6.75 lbs |