Between the Blue Pure 311i+ Max and Core 600S, the Blue Pure 311i+ Max comes out ahead in min noise, while the Core 600S wins on coverage and cadr. Overall, the Blue Pure 311i+ Max scores 61.3 and the Core 600S scores 77.4 on our Mars Score.
Which should you buy?
The Core 600S is the clear pick on raw spec strength, leading by 16.1 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Blue Pure 311i+ Max if you care most about min noise. The biggest gaps in its favor are min noise.
Pick the Core 600S if you care most about coverage and cadr. Its strongest claims are coverage, 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 Core 600S is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Blueair - Blue Pure 311i+ Max wins
- ▲Min noise — 1.00 dB less. 23 vs 24.
Why Levoit - Core 600S wins
- ▲Coverage — 71.43% more. 60 m² vs 35 m².
- ▲CADR — 36.00% more. 680 m³/h vs 500 m³/h.
Spec comparison
Performance
| Spec | Blueair - Blue Pure 311i+ Max | Levoit - Core 600S |
|---|---|---|
| CADR | 500 m³/h | 680 m³/hlead |
| Coverage | 35 m² | 60 m²lead |
| True HEPA H13+ | true | true |
| Activated carbon | true | true |
Smart & Noise
| Spec | Blueair - Blue Pure 311i+ Max | Levoit - Core 600S |
|---|---|---|
| Min noise | 23 dBlead | 24 dB |
| Air quality sensor | true | true |
| Smart app | true | true |
Spec-level deep dives
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