Coway Airmega 400S Graphite App-Enabled Smart Air Purifier (Covers 1,560 sq. ft.), True HEPA Air Purifier with Smart Technology, Compatible with Google Home Alexa

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The 400S is equipped with Wi-Fi,* so that you can control your Airmega anywhere and at any time through the Airmega mobile app, including Smart Mode (Auto, Sleep, Eco) and real-time air quality monitoring. The Wi-Fi*-equipped 400S lets you control your Coway Airmega smart air purifier anywhere, anytime using the Coway Airmega mobile app, including smart mode (auto, sleep, eco) and real-time air quality monitoring. With 1,560 square feet of coverage, the Coway Airmega 400S and 400 models offer the best air-purifying capacity and are designed to be used in larger spaces.

  • Coway Airmega 400S room 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 Max2 filter—combined activated carbon and True HEPA filter—captures and reduces up to 99.97% of 0.3-micron particles in the air, including pollen, pollutants, and other allergens. It also reduces volatile organic compounds by more than 99% and reduces fumes such as NH3 and CH3CHO. Includes washable and permanent pre-filter to catch larger dust particles.
  • Coway Airmega’s pollution sensor communicates indoor air quality testing in real-time. The brightly colored LED ring lets you know how clean or dirty your indoor air is, every minute of the day.
  • 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 has a timer with 1, 2, 4, and 8-hour settings, plus indicators for filter lifetime for both the washable pre-filter and Max2 filter.
  • Coway Airmega IoCare mobile application includes indoor and outdoor air quality monitoring, filter notification, scheduling, and speed and smart mode control.  Coway Airmega also works with Amazon Alexa and Dash Replenishment and is compatible with Google Home.
  • Coway Airmega 400S is Energy Star certified and consumes 64 watts.
  • Limited manufacture’s warranty covers any internal malfunctions for 1 year and motor and electronic parts for 5 years. Filters are excluded.
Air Quality Monitor
Assembled Product Weight
24.7 lbs
Assembled Product Dimensions (L x W x H)
14.81 x 14.81 x 22.81 Inches