HomeAir PurifiersCoway Airmega 400S vs Dyson Purifier Cool Gen1

Coway Airmega 400S vs Dyson Purifier Cool Gen1

Coway's $450 model meets Dyson's $350 model. We tally wins category by category, then call a verdict.

Our recommendation

The Coway Airmega 400S wins on more spec categories (4–2), but the Dyson Purifier Cool Gen1 undercuts it by $100. Choose the Coway Airmega 400S for performance, the Dyson Purifier Cool Gen1 to save.

Coway Airmega 400S: 4 category wins Dyson Purifier Cool Gen1: 2 category wins

Side by side

 

Coway Airmega 400S

$450

Dyson Purifier Cool Gen1

$350
CADR
350 CFMWin
105 CFM
Coverage
115 m²Win
27 m²
Noise (low)
22 dBWin
28 dB
Noise (high)
52 dBWin
56 dB
True HEPA
Yes
Yes
Activated carbon
Yes
Yes
Smart app
Yes
Yes
Voice control
Yes
Yes
Filter cost / yr
110 USD
80 USDWin
Dimensions
35 × 35 × 57 cm
22 × 22 × 76 cm
Weight
11.4 kg
4.5 kgWin

Coway Airmega 400S

A dual-intake powerhouse that covers huge rooms with deep carbon and a slick smart app.

Dyson Purifier Cool Gen1

A sleek bladeless tower that purifies and cools with a fully sealed HEPA system and slick app control.

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