Blueair - Blue Pure 311i+ Max vs IQAir - HealthPro Plus
Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Blueair - Blue Pure 311i+ Max | IQAir - HealthPro Plus |
|---|---|---|
| Coverage | 35 m² | 85 m² |
| CADR | 500 m³/h | 470 m³/h |
| Min noise | 23 dB | 25 dB |
Between the Blue Pure 311i+ Max and HealthPro Plus, the Blue Pure 311i+ Max comes out ahead in cadr / min noise, while the HealthPro Plus wins on coverage. Overall, the Blue Pure 311i+ Max scores 77.4 and the HealthPro Plus scores 83.6 on our Mars Score.
Which should you buy?
The HealthPro Plus edges ahead on the Mars Score (77.4 vs 83.6), but the 6.2-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Blue Pure 311i+ Max if you care most about cadr / min noise. The biggest gaps in its favor are cadr, min noise. The single most decisive one: CADR — 6.38% more. 500 m³/h vs 470 m³/h.
Pick the HealthPro Plus if you care most about coverage. Its strongest claims are coverage. The single most decisive one: Coverage — 142.86% more. 85 m² vs 35 m².
Both ship with comparable true hepa h13+, activated carbon, so those specs do not separate the two — focus on the differences below.
Bottom line: the HealthPro Plus is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Blueair - Blue Pure 311i+ Max or IQAir - HealthPro Plus?
IQAir - HealthPro Plus leads the current Mars Score by 6.2 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 Blueair - Blue Pure 311i+ Max if…
Blueair - Blue Pure 311i+ Max has the measurable edge on cadr m3h, noise db min.
Choose IQAir - HealthPro Plus if…
IQAir - HealthPro Plus has the measurable edge on 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 Blueair - Blue Pure 311i+ Max wins
- ▲CADR — 6.38% more. 500 m³/h vs 470 m³/h.
- ▲Min noise — 2.00 dB less. 23 vs 25.
Why IQAir - HealthPro Plus wins
- ▲Coverage — 142.86% more. 85 m² vs 35 m².
Spec comparison
Performance
| Spec | Blueair - Blue Pure 311i+ Max | IQAir - HealthPro Plus |
|---|---|---|
| CADR | 500 m³/hlead | 470 m³/h |
| Coverage | 35 m² | 85 m²lead |
| True HEPA H13+ | true | true |
| Activated carbon | true | true |
Smart & Noise
| Spec | Blueair - Blue Pure 311i+ Max | IQAir - HealthPro Plus |
|---|---|---|
| Min noise | 23 dBlead | 25 dB |
| Air quality sensor | truelead | false |
| Smart app | truelead | false |