Between the Purifier Hot+Cool HP10 and HPA300, the Purifier Hot+Cool HP10 comes out ahead in coverage and min noise, while the HPA300 wins on cadr. Overall, the Purifier Hot+Cool HP10 scores 58.4 and the HPA300 scores 65 on our Mars Score.
Which should you buy?
The HPA300 edges ahead on the Mars Score (58.4 vs 65), but the 6.6-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Purifier Hot+Cool HP10 if you care most about coverage and min noise. The biggest gaps in its favor are coverage, min noise.
Pick the HPA300 if you care most about cadr. Its strongest claims are cadr.
Both ship with comparable true hepa h13+, activated carbon, so those specs don't separate the two — focus on the differences below.
Bottom line: the HPA300 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Dyson - Purifier Hot+Cool HP10 wins
- ▲Coverage — 13.64% more. 50 m² vs 44 m².
- ▲Min noise — 2.00 dB less. 30 vs 32.
Why Honeywell - HPA300 wins
- ▲CADR — 70.00% more. 510 m³/h vs 300 m³/h.
Spec comparison
Performance
| Spec | Dyson - Purifier Hot+Cool HP10 | Honeywell - HPA300 |
|---|---|---|
| CADR | 300 m³/h | 510 m³/hlead |
| Coverage | 50 m²lead | 44 m² |
| True HEPA H13+ | true | true |
| Activated carbon | true | true |
Smart & Noise
| Spec | Dyson - Purifier Hot+Cool HP10 | Honeywell - HPA300 |
|---|---|---|
| Min noise | 30 dBlead | 32 dB |
| Air quality sensor | truelead | false |
| Smart app | truelead | false |
Frequently asked
Spec-level deep dives
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