Can Mi Air Purifier be placed sideways?

Function description:
Mi Air Purifier uses a dual blower engine with four separate Air ducts to create a large circulation of clean Air throughout the room.As shown in the following figure:
If the Mi Air Purifier is placed horizontally, the air circulation will be hindered, resulting in poor purification effect.It is recommended to be placed vertically at least 20cm away from the wall to ensure the purification effect.