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　　通風性能好，具有防止水濺入內部的功能，有擋水的功能。

　　It has good ventilation performance, has the function of preventing water from splashing into the interior, and has the function of retaining water

　　主要作用于管道或者側墻上做側送風口，用于調節(jié)送風氣流的擴散角也可以用于改變氣流的方向。用于洗手間，衛(wèi)生間的回風，電梯，管道口，檢修口的裝飾。

　　It is mainly used as a side air vent on the pipe or side wall. It can also be used to change the direction of the air flow by adjusting the diffusion angle of the air flow. For the bathroom, the toilet, the air, the elevator, the pipe mouth, the decoration of the mouth.