Coway Airmega 400 Smart Air Purifier
$549
#2
Large homes with pets

Coway
Coway Airmega 400 Smart Air Purifier
Last updated: March 2026
9.4/10(8,500 reviews)
$549$649-15%
on AmazonCoway Airmega 400 Smart Air Purifier — Large homes with pets
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Key Specs
CADR350
Dimensions14.8 x 22.8 x 14.8 inches
Filter TypeMax2 (HEPA + Carbon)
Noise Level22-52 dB
Coverage Area1560 sq. ft.
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Why We Recommend This
The Coway Airmega 400 Smart Air Purifier earned our “Large homes with pets” badge after research against 2 competing models in the hepa purifiers category. It stands out for covers large areas up to 1,560 sq. ft. and smart mode adjusts fan speed automatically.
What We Like
- Covers large areas up to 1,560 sq. ft.
- Smart mode adjusts fan speed automatically
- Real-time air quality monitoring
- Energy-efficient operation
What Could Be Better
- Expensive initial cost
- Bulky design
- Replacement filters can be costly
Full Specifications
CADR350
Dimensions14.8 x 22.8 x 14.8 inches
Filter TypeMax2 (HEPA + Carbon)
Noise Level22-52 dB
Coverage Area1560 sq. ft.
Coway Airmega 400 Smart Air Purifier
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