Mi Air Purifier can control the purifier’s fan speed and check air quality through a mobile app. It also notifies users when the internal fan needs to be replaced. Xiaomi claims that the device can fill a room with 406 cubic meters of clean air per hour， and that it can remove 99.9 percent of PM2.5 particles. 

 The machine’s base is roughly the size of an A4 (8.5”x11”) sheet of paper， and judging by the photos released， it looks skinnier and taller than other air filters on the market.

Xiaomi Mi Air Purifier

Mi Smart Air Purifier comes with a double-fan and 4-independent air passage design. It is small， and takes an area as small as an A4 paper; it is equipped with 2 Japan-made electrical machines， responsible for ventilation and air supply respectively. What is the most important? Mi Air Purifier filters the air with a fantastic capacity of 406 m³/h. Mi Air Purifier can be controlled by a Mi phone and an alert will send out when the filter is in need of replacement. 

- Dual fan， four air ducts for large indoor circulation

- Produces nearly 10，000 liters of clean air per minute (406 m³/h)

- 3-layered filter removes 99.99% of PM2.5 particles

- Real-time air quality monitor and auto speed control 

- Smartphone remote control and alerts

- Occupies area equivalent to an A4 sheet of paper