The gray air purifier is ideal for large rooms and specifically designed for allergy sufferers. With a power of 70 watts, it ensures clean air and can be operated via the VeSync app. Thanks to its smart home functionality and Alexa control, the air purifier can be conveniently managed. The integrated 3-channel air quality monitor provides real-time air quality measurements, allowing for precise monitoring of the indoor air. With a maximum noise level of only 26 dB, it operates quietly. Additionally, it features smart WiFi for easier control. The air purifier is designed for a room area of 1,036.8 square centimeters. A washable pre-filter is included in the package.