Coverage & Performance:
Designed to purify spaces up to 1,560 sq. ft. in just 30 minutes, operating quietly with a noise level of 22-52 dB(A).

HyperCaptive Filtration System:
Combines a washable pre-filter, activated carbon filter, and Green True HEPA filter to capture 99.999% of ultrafine particles as small as 0.01 microns—including pollen, pollutants, and allergens. Also reduces 99% of volatile organic compounds (VOCs) and odors.

Smart Mode:
Automatically adjusts fan speeds based on real-time air quality, maximizing energy efficiency without compromising purification effectiveness.

Eco Mode:
If the air remains clean for 30+ minutes, the fan shuts off to conserve energy, resuming operation when pollution is detected.

Sleep Mode:
When the room is dark and air is clean for 3 minutes, Sleep Mode reduces noise and power consumption for undisturbed rest.

Filter Alerts:
Intelligent indicators notify you when filters need replacement or pre-filters require cleaning, ensuring optimal performance.

Air Quality Indicator:
Monitors pollution levels 24/7, adjusting purification intensity accordingly to save energy.

Timer Function:
Schedule operation for 1, 4, or 8 hours to fit your lifestyle and conserve energy.

Warranty:
Comes with a 5-year limited manufacturer’s warranty for peace of mind.

Overview:
The Coway Airmega 400 is a state-of-the-art air purifier that intelligently cleans your home environment with powerful yet quiet operation. Its HyperCaptive filtration system removes nearly all airborne particles, while smart features like real-time air quality monitoring and multiple operation modes (auto, sleep, eco) keep your indoor air fresh and healthy around the clock.