This air vent is used for automatic exhaust in air-conditioned rooms with positive pressure. Usually, the louvers near the vent automatically and naturally hang down, isolating the exchange of indoor and outdoor air. When the indoor air pressure is higher than the outdoor air pressure, the air pressure flow will blow open the louvers and exhaust outward. Conversely, when the indoor air pressure is lower than the outdoor air pressure, the airflow cannot flow back into the room. This air vent has a one-way check function.

Kd type self hanging louver air outlet type size

Customization is also welcome for sizes beyond the specifications