The Coway Airmega 350 is a large-room air purifier that pairs a powerful fan with a 3-stage filtration system, designed to keep open-plan living areas and large bedrooms clear of dust, pollen and pet allergens.
Key features
- 3-stage GreenHEPA filtration — a vacuumable pre-filter, activated carbon layer and GreenHEPA filter capture particles and odours together.
- Large-room coverage — rated for rooms up to around 185 m² at one air change per hour.
- 4-colour air quality indicator — shows current air quality at a glance, from blue (good) to red (poor).
- Auto and Silent modes — the purifier adjusts fan speed to real-time air quality, or runs near-silently overnight.
- 360° air intake — draws air in from all sides for faster whole-room coverage.
Specifications
| Filter type | Pre-filter + activated carbon + GreenHEPA |
|---|---|
| Room coverage | Up to 185 m² (1 ACH) |
| Noise level | 21.6–54.7 dB |
| Power | 62 W |
| Weight | 7.8 kg |
| Dimensions (H × W × D) | 59.1 × 30.5 × 30.5 cm |
Good to know
The pre-filter can be vacuumed between changes; the combined HEPA/carbon filter typically lasts around 12 months under normal use. Choose Auto mode for day-to-day running, or Silent mode for bedrooms overnight.
