Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Coway - Airmega 200M | Levoit - Core 300S |
|---|---|---|
| CADR | 400 m³/h | 230 m³/h |
| Coverage | 33 m² | 20 m² |
| True HEPA H13+ | true | false |
| Min noise | 25 dB | 24 dB |
Between the Airmega 200M and Core 300S, the Airmega 200M comes out ahead in cadr / coverage, while the Core 300S wins on min noise. Overall, the Airmega 200M scores 74.2 and the Core 300S scores 55.8 on our Mars Score.
Which should you buy?
The Airmega 200M is the clear pick on raw spec strength, leading by 18.4 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 / coverage. The biggest gaps in its favor are cadr, coverage, true hepa h13+. The single most decisive one: CADR — 73.91% more. 400 m³/h vs 230 m³/h.
Pick the Core 300S if you care most about min noise. Its strongest claims are min noise. The single most decisive one: Min noise — 1.00 dB less. 24 vs 25.
Both ship with comparable activated carbon, so those specs do not 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.
Which should you buy: Coway - Airmega 200M or Levoit - Core 300S?
Coway - Airmega 200M leads the current Mars Score by 18.4 points.The more useful decision is the trade-off behind that result: compare cadr, coverage, true hepa h13+, min noise against the way you will actually use the product.
Choose Coway - Airmega 200M if…
Coway - Airmega 200M has the measurable edge on cadr m3h, coverage m2, has hepa 13.
Choose Levoit - Core 300S if…
Levoit - Core 300S has the measurable edge on noise db min.
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 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 |