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.
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 We do not present unpublished laboratory or in-home measurements as our own testing.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.

BLUEAIR Blue Pure 311i Max
BLUEAIR
Check Amazon for the current price

Dyson Purifier Cool
Dyson
Check Amazon for the current price
Feature comparison
| Feature | BLUEAIR Blue Pure 311i Max | Dyson Purifier Cool |
|---|---|---|
| Coverage | 439 sq ft (4.8 ACH) | 800+ sq ft |
| CADR | 283 / 314 / 365 CFM (Smoke / Dust / Pollen) | Not disclosed |
| Filter type | HEPASilent dual filtration (mechanical + electrostatic) with combined particle + carbon filter | HEPA H13 + Activated Carbon |
| Noise level | 23-50 dB (rated) | 38-61 dB |
| Weight | 7.8 lbs | 10.2 lbs |