Blueair ComfortPure 3-in-1 T20i vs Dyson Purifier Hot+Cool HP2 De-NOx
The two purifier-heaters most often cross-shopped.
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Best for: Heat, cool and purify with a published 227 CFM CADR
Check price at AmazonBest for: Purifies, heats and cools, with 350° oscillation
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Blueair ComfortPure 3-in-1 T20i | Dyson Purifier Hot+Cool HP2 De-NOx | Weight |
|---|---|---|---|
| Heater modeYes when the maker lists a heating mode. A heater combo replaces a space heater in winter. | Yes | Yes | 20% |
| Cooling fan / circulator modeYes when the unit can blow air at you or circulate the room. Honeywell notes its circulator moves air but doesn't cool it. | Yes | Yes | 15% |
| HumidifierYes for units with a water tank that add moisture (Dyson PH2, Blueair 2-in-1). | No | No | 15% |
| Smoke CADRListed only by Blueair here. Dyson, Shark and Honeywell don't publish an AHAM CADR, so those cells are blank and score at the lowest published value in the category. | 227 CFM | Not listed | 25% |
| Oscillation rangeHow far the unit turns to spread air around the room, per the maker. | Not listed | 350 ° | 10% |
| Carbon stage includedYes when the included filter has activated carbon (Dyson K-Carbon or activated carbon, Blueair particle + carbon, Honeywell carbon filter). | Yes | Yes | 15% |
| Modes | Heat, cool, purify | Purify, heat, cool | info |
| CADR (smoke / dust / pollen) | 227 / 238 / 252 | Not listed | info |
| Recommended room | 352 ft² (4.8 ACH) | Not listed | info |
| Filter | Particle + carbon | Combined HEPA + K-Carbon | info |
| Filter life | Up to 1 year (RealTrack) | 1 year (12 h/day) | info |
| Noise | 24–52 dB | Not listed | info |
| Energy consumption (listed) | 36 W | Not listed | info |
| Oscillation | Adjustable (angle not listed) | 350° | info |
| Weight | 26.9 lb | 12.2 lb | info |
| AHAM CADR | Not listed | Not published by the maker | info |
| Speeds | Not listed | 10 | info |
| Height | Not listed | 30.1 in | info |
| AirPick score | 7.9/10 | 6.2/10 | 100% |
Where each one comes out ahead
Blueair ComfortPure 3-in-1 T20i
No scored spec where it is strictly ahead; its case rests on the strengths below.
What we like
- The only heater combo here with a CADR
- Anti-tip and overheat shutoff
Watch out for
- 26.9 lb
- Oscillation angle not published
Dyson Purifier Hot+Cool HP2 De-NOx
No scored spec where it is strictly ahead; its case rests on the strengths below.
What we like
- Heats, cools and purifies
- 350° oscillation
- K-Carbon filter
Watch out for
- No CADR, noise or power on the page
Verdict
Both heat, cool and purify. Blueair publishes a 227 CFM smoke CADR and 24–52 dB; Dyson publishes neither, but lists 350° oscillation and a HEPA + K-Carbon filter. The Dyson weighs 12.2 vs 26.9 lb.
- Blueair ComfortPure 3-in-1 T20i: Blueair: ComfortPure 3-in-1 T20i
- Dyson Purifier Hot+Cool HP2 De-NOx: Dyson: Purifier Hot+Cool HP2 De-NOx