Coway Airmega 250 vs Coway Airmega 400
Winner Coway Airmega 250 has the higher overall owner score (4.1) in our data.
| Coway Airmega 250 | Coway Airmega 400 | |
|---|---|---|
| Photo |  |  |
| Overall | 4.1 | 3.9 |
| Owner sentiment | 4.3 | 4.2 |
| Recommendations | 4.1 | 4.1 |
| Value | 3.6 | 3.0 |
| Owner comments | 7 | 11 |
| Price snapshot | $449.00 (price as of 2026-11-07) | $629.99 (price as of 2026-11-07) |
Specs (shared fields)
| Coway Airmega 250 | Coway Airmega 400 | |
|---|---|---|
| Power Source | Corded Electric | Corded Electric |
| Control Method | App, Voice | Touch |
| Filter Type | HEPA Filter, Carbon Filter, Washable Pre-Filter | HEPA Filter, Active Carbon Filter, Pre-Filter |
| Floor Area | 1860 square_feet | 3120 square_feet |
| Noise Level | 22 db | 22 db |
| Particle Retention Size | 0.3 micron | 0.3 micron |
| Controller Type | Amazon Alexa, Google Assistant, Touch | Touch |
| Wattage | 64 watts | 66 watts |
| Contaminant Filtration Capability | Dust, Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs) | Dust, Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs) |
| Special Features | Air Quality Monitor, Filter Life Indicator, Smart Mode, Wi-Fi Enabled | Air Quality Monitor, Eco Mode, Filter Life Indicator, Smart Mode, Timer |
| Filter Class | HEPA, Activated Carbon, Pre-Filter | MultiFilterManager |
| Software Update Supported to Date | unknown | unknown |
Where owner praise diverges
Owners praise the Coway Airmega 250 more for nothing distinct, and the Coway Airmega 400 more for nothing distinct.
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