BLUEAIR Blue Pure 311i Max vs Dyson Purifier Cool
Side-by-side comparison based on published product information. Check Amazon for current price and availability.
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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 We do not present unpublished laboratory or in-home measurements as our own testing.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.

BLUEAIR Blue Pure 311i Max
BLUEAIR
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Feature comparison
| Feature | BLUEAIR Blue Pure 311i Max | Dyson Purifier Cool |
|---|---|---|
| CADR | 283 / 314 / 365 CFM (Smoke / Dust / Pollen, AHAM Verifide) | Not disclosed |
| Coverage | 439 sq ft (4.8 ACH) | — |
| Noise level | 23-50 dB | Up to 46 dB (purifier mode, speed 4); up to 61.4 dB (fan mode, max flow) |
| Power | 32 W | 6-40 W input; standby under 0.5 W |
| Filter type | HEPASilent dual filtration; Particle & Carbon main filter + washable fabric pre-filter | 360-degree glass HEPA H13 + activated carbon filter (fully sealed to HEPA H13) |
| Filter life | 6-9 months (main filter); pre-filter washable | 12 months or when notified (6 months at 24h/day use) |
| Warranty | 1 year limited; 3 years with product registration | 2-year |
| Dimensions | 19 x 12.5 x 12.5 in (H x W x D) | 41 x 8 x 4.72 in (H x W x D) |
| Weight | 7.8 lbs | 11 lbs |
