Xiaomi Smart Air Purifier 4 APP/Voice Control ,Suitable for large room Smart Air Cleaner Global Version, 400 m3/h PM CADR, OLED Touch Screen Display - Mi Home App Works With Alexa-White

Smart Control: Voice command with Google assistant and Alexa High-precision Sensors: PM 2.5, Tem. and Humid sensors to monitor air quality High-efficiency Filter: 99.97% filtration efficiency for fine particles (0.3 micron) OLED Touch Screen: Air quality index displayed in real time Quiet Operation: Low noise 32.1dB in night mode, sleep undisturbed