Exhaust fan, a motor driven by the motor to rotate the air flow, so that indoor and outdoor air exchange a class of air conditioning appliances. Also known as the ventilation fan.
The purpose of the exhaust is to remove the dirty air in the room and regulate the temperature, humidity and sensory effects. Exhaust fans are widely used in homes and public places.
Exhaust fan, also known as negative pressure fan, negative pressure fan and so on.
The use of air convection can keep the room in a state of negative pressure, forming a suction force, continuously sucking in the outdoor air and discharging the stuffy air in the room, so as to achieve ventilation and cooling effect.