Between the Airmega 400 and Air Pro, the Airmega 400 comes out ahead in cadr and min noise, while the Air Pro wins on coverage. Overall, the Airmega 400 scores 78.3 and the Air Pro scores 81.6 on our Mars Score.
Which should you buy?
The Air Pro edges ahead on the Mars Score (78.3 vs 81.6), but the 3.3-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the Airmega 400 if you care most about cadr and min noise. The biggest gaps in its favor are cadr, min noise, true hepa h13+.
Pick the Air Pro if you care most about coverage. Its strongest claims are coverage.
Both ship with comparable activated carbon, so those specs don't 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 tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Coway - Airmega 400 wins
- ▲CADR — 41.00% more. 705 m³/h vs 500 m³/h.
- ▲Min noise — 8.00 dB less. 22 vs 30.
- ▲Has True HEPA H13+.
Why Molekule - Air Pro wins
- ▲Coverage — 55.00% more. 93 m² vs 60 m².
Spec comparison
Performance
| Spec | Coway - Airmega 400 | Molekule - Air Pro |
|---|---|---|
| CADR | 705 m³/hlead | 500 m³/h |
| Coverage | 60 m² | 93 m²lead |
| True HEPA H13+ | truelead | false |
| Activated carbon | true | true |
Smart & Noise
| Spec | Coway - Airmega 400 | Molekule - Air Pro |
|---|---|---|
| Min noise | 22 dBlead | 30 dB |
| Air quality sensor | true | true |
| Smart app | true | true |
Frequently asked
Spec-level deep dives
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