When the air-conditioning outlet type chooses the louver vent, it must be a double-layer movable louver vent, and the outer louver is horizontal. 　　

In the home improvement project, the air supply is usually in the form of side air. At this time, in the cooling mode, the direction of the louvers is adjusted for horizontal delivery; in the heating mode, the direction of the louvers is adjusted to an inclined downward angle to deliver the hot air to the work area. As a result, the outer louver can be considered as curved louver. In order to ensure a good directional diversion effect during heating, it is recommended that the blade width of the louver tuyere is about 30mm; 　　

In order to ensure a good heating effect of the air conditioner, it is recommended to adopt the mode of connecting the air duct of the air conditioner internal unit and then sending air downward. 　　

Single-layer fixed shutters can be selected for the air-conditioning return air outlet. There is no need to adjust the direction of the air return, so a single-layer louver is enough.