Dyson - Purifier Hot+Cool HP10 vs Xiaomi - Mi Smart Air Purifier 4 Pro
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Dyson - Purifier Hot+Cool HP10 | Xiaomi - Mi Smart Air Purifier 4 Pro |
|---|---|---|
| CADR | 300 m³/h | 500 m³/h |
| Coverage | 50 m² | 60 m² |
| Min noise | 30 dB | 32 dB |
Between the Purifier Hot+Cool HP10 and Mi Smart Air Purifier 4 Pro, the Purifier Hot+Cool HP10 comes out ahead in min noise, while the Mi Smart Air Purifier 4 Pro wins on cadr / coverage. Overall, the Purifier Hot+Cool HP10 scores 72.5 and the Mi Smart Air Purifier 4 Pro scores 76.7 on our Mars Score.
Which should you buy?
The Mi Smart Air Purifier 4 Pro edges ahead on the Mars Score (72.5 vs 76.7), but the 4.2-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 min noise. The biggest gaps in its favor are min noise. The single most decisive one: Min noise — 2.00 dB less. 30 vs 32.
Pick the Mi Smart Air Purifier 4 Pro if you care most about cadr / coverage. Its strongest claims are cadr, coverage. The single most decisive one: CADR — 66.67% more. 500 m³/h vs 300 m³/h.
Both ship with comparable true hepa h13+, activated carbon, so those specs do not separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Dyson - Purifier Hot+Cool HP10 or Xiaomi - Mi Smart Air Purifier 4 Pro?
Xiaomi - Mi Smart Air Purifier 4 Pro leads the current Mars Score by 4.2 points.The more useful decision is the trade-off behind that result: compare cadr, coverage, min noise against the way you will actually use the product.
Choose Dyson - Purifier Hot+Cool HP10 if…
Dyson - Purifier Hot+Cool HP10 has the measurable edge on noise db min.
Choose Xiaomi - Mi Smart Air Purifier 4 Pro if…
Xiaomi - Mi Smart Air Purifier 4 Pro has the measurable edge on cadr m3h, coverage m2.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Dyson - Purifier Hot+Cool HP10 wins
- ▲Min noise — 2.00 dB less. 30 vs 32.
Why Xiaomi - Mi Smart Air Purifier 4 Pro wins
- ▲CADR — 66.67% more. 500 m³/h vs 300 m³/h.
- ▲Coverage — 20.00% more. 60 m² vs 50 m².
Spec comparison
Performance
| Spec | Dyson - Purifier Hot+Cool HP10 | Xiaomi - Mi Smart Air Purifier 4 Pro |
|---|---|---|
| CADR | 300 m³/h | 500 m³/hlead |
| Coverage | 50 m² | 60 m²lead |
| True HEPA H13+ | true | true |
| Activated carbon | true | true |
Smart & Noise
| Spec | Dyson - Purifier Hot+Cool HP10 | Xiaomi - Mi Smart Air Purifier 4 Pro |
|---|---|---|
| Min noise | 30 dBlead | 32 dB |
| Air quality sensor | true | true |
| Smart app | true | true |