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The Coway Airmega 400 model features smart mode (auto, sleep, eco) and real-time air quality monitoring, so you can rest assured that the Coway Airmega is at work at all times. The Coway Airmega 400 model is not Wi-Fi or app-enabled. With a coverage area of 1,560 square feet, the Coway Airmega 400 model offers the most air-purifying capacity as compared to our other products and can be used in larger spaces.

• Coway Airmega 400 air purifier is designed to accommodate large room sizes up to 1,560 square feet and cleans the air at least two times per hour when used as recommended.
• Coway Airmega’s HyperCaptive™ filtration system combined activated carbon and a True HEPA filter-captures and reduces up to 99.999% of particles 0.01 microns in the air, including pollen, pollutants, and other allergens. It also reduces more than 99% of volatile organic compounds and reduces fumes such as NH3 and CH3CHO.
• Coway Airmega’s real-time air quality monitor keeps you informed of the quality of your air. In Auto Mode, the fan and purification levels adjust to the space as needed.
• Coway Airmega has five fan modes: Smart, Sleep, Low, Medium, and High. Noise level is nearly silent at lower speeds. Max noise at the highest setting is 43.2 dB.
• Coway Airmega is a smart, energy-efficient air purifier with a three-setting smart mode to adapt to its surroundings. Fan speed automatically adjusts based on the room’s air quality and lighting conditions to improve air quality.
• Coway Airmega’s intuitive filter replacement indicator lights when filters need changing, so there’s no need to keep track yourself.
• Coway Airmega has a timer with 1, 2, 4, and 8-hour settings.
• Coway Airmega 400 is Energy Star certified and consumes 64 watts.