Coway Airmega Mighty2 Air Purifier vs Coway Airmega 400

Winner Coway Airmega Mighty2 Air Purifier has the higher overall owner score (4.5) in our data.

Coway Airmega Mighty2 Air PurifierCoway Airmega 400
PhotoCoway Airmega 400 product photo
Overall4.53.9
Owner sentiment4.44.2
Recommendations5.04.1
Value4.23.0
Owner comments2111
Price snapshot$269.99 (price as of 2026-11-07)$629.99 (price as of 2026-11-07)

Specs (shared fields)

Coway Airmega Mighty2 Air PurifierCoway Airmega 400
Power SourceCorded ElectricCorded Electric
Control MethodTouchTouch
Filter TypeHEPA Filter, Active Carbon Filter, Pre-FilterHEPA Filter, Active Carbon Filter, Pre-Filter
Floor Area1800 square_feet3120 square_feet
Noise Level19 db22 db
Particle Retention Size0.3 micron0.3 micron
Controller TypeTouchTouch
Wattage56 watts66 watts
Contaminant Filtration CapabilityDust, Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs)Dust, Odors, Pet Dander, Pollen, Volatile Organic Compounds (VOCs)
Special FeaturesAir Quality Indicator, Filter Life Indicator, Light Sensor, Smart ModeAir Quality Monitor, Eco Mode, Filter Life Indicator, Smart Mode, Timer
Filter ClassHyperCaptiveMultiFilterManager
Software Update Supported to Dateunknownunknown

Where owner praise diverges

Owners praise the Coway Airmega Mighty2 Air Purifier more for nothing distinct, and the Coway Airmega 400 more for nothing distinct.

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Coway Airmega Mighty2 Air Purifier review · Coway Airmega 400 review