COUNTERFLOW PREVENTION THE FAN FILTER UNIT WHICH IS POSSIBLE

摘要

PURPOSE: A fan filter unit for preventing backflow is provided to prevent noise by forming the wing of the fan filter unit installed for air conditioning in a wave shape. CONSTITUTION: A fan filter unit(100) for preventing backflow comprises a housing(130), a driving motor, and a ventilation fan(140) and a backflow prevention pin(150). On the central part of the housing, an inlet inhaling the air is formed. The driving motor aligns with the central part of the inlet of the housing. The ventilation fan is rotatably connected to the driving shaft of the driving motor. On the ventilation fan, a plurality of wings are formed. The backflow prevention pin prevents the backflow from the outlet of the ventilation fan.