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Air Filtration
Coway Airmega 400
Coway
Best Price
$595
coway
Our Take
Airmega 400 is the value pick in the large-room HEPA category, covers 1560 sq ft (double the IQAir HealthPro's coverage) at less than half the price. Two-stage HEPA + activated carbon, real-time air quality sensor with color-coded display, auto mode that ramps fan speed to current particulate count. Trade-off vs IQAir: standard HEPA (0.3 micron) not HyperHEPA (0.003 micron), so it misses the very finest particulates.
Pros
- 1560 sq ft coverage, twice IQAir HealthPro's range
- Half the IQAir HealthPro price
- Real-time air quality LED indicator + auto mode
- Filter swaps are user-doable (no service call)
Cons
- Standard HEPA, not HyperHEPA, misses ultrafine particulates that matter for smoke/viruses
- Loud at high fan speeds in high-pollution environments
Specifications
type
True HEPA
coverage
1560 sq ft
noise_level
22-52 dB
features
Smart mode, app control
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