Between the Airmega 200M and Core 300S, the Airmega 200M comes out ahead in cadr and coverage, while the Core 300S wins on min noise. Overall, the Airmega 200M scores 56.3 and the Core 300S scores 43 on our Mars Score.
Which should you buy?
The Airmega 200M is the clear pick on raw spec strength, leading by 13.3 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 Airmega 200M if you care most about cadr and coverage. The biggest gaps in its favor are cadr, coverage, true hepa h13+.
Pick the Core 300S if you care most about min noise. Its strongest claims are min noise.
Both ship with comparable activated carbon, so those specs don't separate the two — focus on the differences below.
Bottom line: the Airmega 200M is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Coway - Airmega 200M wins
- ▲CADR — 73.91% more. 400 m³/h vs 230 m³/h.
- ▲Coverage — 65.00% more. 33 m² vs 20 m².
- ▲Has True HEPA H13+.
Why Levoit - Core 300S wins
- ▲Min noise — 1.00 dB less. 24 vs 25.
Spec comparison
Performance
| Spec | Coway - Airmega 200M | Levoit - Core 300S |
|---|---|---|
| CADR | 400 m³/hlead | 230 m³/h |
| Coverage | 33 m²lead | 20 m² |
| True HEPA H13+ | truelead | false |
| Activated carbon | true | true |
Smart & Noise
| Spec | Coway - Airmega 200M | Levoit - Core 300S |
|---|---|---|
| Min noise | 25 dB | 24 dBlead |
| Air quality sensor | true | true |
| Smart app | false | truelead |
Frequently asked
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.