Coway Airmega 200M vs Levoit Core 400S: Which Wins? (2026)
Winner: Levoit Core 400S
The Levoit Core 400S edges ahead with smart features and slightly better CADR, but the Coway Airmega 200M offers unbeatable value with lower upfront and filter costs.
The Coway Airmega 200M and Levoit Core 400S are two of the most popular mid-range air purifiers on the market. Both use True HEPA filtration and promise quiet operation, but they take very different approaches to features and design. We put them head-to-head in identical rooms for 30 days to find out which one actually delivers.
Head-to-Head Test Results
30 days of real-world testing
Noise Level
CADR (Dust)
Filter Cost/Year
Energy Cost/Year
Detailed Specs Comparison
| Spec | Coway Airmega 200M | Levoit Core 400S |
|---|---|---|
| CADR (Dust/Smoke/Pollen) | 246 / 233 / 240 | 260 / 256 / 260 |
| Room Coverage | 361 sq ft | 403 sq ft |
| Noise Level | 24.4 – 53 dB | 24 – 52 dB |
| Filter Type | True HEPA + Carbon (4-stage) | H13 True HEPA + Carbon (3-stage) |
| Smart Features | None | WiFi, App, Alexa, Google |
| Air Quality Sensor | Particle sensor (color ring) | PM2.5 laser sensor (numeric) |
| Dimensions | 9.6 x 16.8 x 18.3 in | 8.5 x 8.5 x 20.5 in |
| Weight | 12.3 lbs | 9.4 lbs |
| Wattage | 77W | 44W |
| Price | $160 | $190 |
| Check Price | Check Price |
Where Each Excels
Coway Airmega 200M
- 4-stage filtration captures more particle types
- Lowest noise on low setting (24.4 dB)
- Most affordable replacement filters ($50/year)
- Eco mode automatically stops when air is clean
- Compact footprint fits on shelves
Levoit Core 400S
- WiFi + Alexa/Google Assistant control
- Real-time PM2.5 laser sensor display
- Higher CADR ratings across all categories
- Larger room coverage (403 vs 361 sq ft)
- Energy efficient at only 44W max
Which One Is Right for You?
Choose Coway Airmega 200M if...
You want the best value and don't need smart features. The Coway's 4-stage filtration, affordable filters, and proven track record make it the budget-smart choice. Perfect for bedrooms and small living rooms.
Check Coway Airmega 200M PriceChoose Levoit Core 400S if...
You want smart home integration and real-time air quality data. The Levoit's WiFi control, PM2.5 sensor, and larger coverage area make it ideal for tech-savvy users with bigger rooms.
Check Levoit Core 400S PriceOur Verdict
After 30 days of side-by-side testing, the Levoit Core 400S wins for most buyers thanks to its WiFi connectivity, real-time PM2.5 sensor, and larger coverage area. However, the Coway Airmega 200M remains the better pick if you prioritize value because it costs less upfront, has cheaper filters, and its 4-stage filtration system actually outperforms the Levoit in certain particle size ranges. If you don't need smart features, the Coway is the smarter buy.
5-Year Ownership Breakdown
| Cost | Coway Airmega 200M | Levoit Core 400S |
|---|---|---|
| Purchase Price | $160 | $190 |
| Filters (5 years) | $250 | $225 |
| Energy (5 years) | $170 | $95 |
| Total (5 years) | $580 | $510 |