Problem Explanation：
Mi Air Purifier adopts twin fan engine with independent four air channels to create a large circulation of air in the whole house, allowing clean air to blow through every corner of the room.As shown in the figure below:
If the Mi Air Purifier is placed horizontally, the air circulation will be obstructed and result in poor purification effect.It is recommended to place it vertically at least 20cm away from the wall to ensure the purification effect.
