Triple Layer filtration:- Mi Air Purifier 3 features a triple-layer purification filter which includes:

Primary Filter: It removes large airborne particles like dust and pet hair
 

True HEPA Filter: It eliminates 99.97 percent of small pollutants like PM2.5
 

Activated Carbon Filter: It removes formaldehyde, toxic substances, and bad odour. The air purifier works well in large rooms and can be placed anywhere in the room
 

OLED Touch Display:- Check the PM 2.5 levels, temperature, humidity, and Wifi connection status on the high-resolution display. The air purifier comes with 6 modes of- sleep, auto, low, medium and high to choose from with one single touch. The purifier can be connected to the MiHome App to get AQI information on your phone. 
 

Coverage Area:- The purifier is perfect for medium to large rooms. It cleans the air 3 times in an hour in the recommended room size. With a high Clean Air Delivery Rate, it ensures you only breathe more clean air. CADR indicates the volume of purified air (in cubic meter) which an air purifier produces every hour. 
 

Lesser Noise:- As compared to Mi Air Purifier 2, Mi Air purifier 3�s noise levels at highest fan speed came down from 66 db(A) to 64 db(A). The purifier makes slightest of sound during the sleep mode hence providing you a good night�s sleep with fresh air.