The diffuser is the air outlet for air conditioning or ventilation, which divides the air outlet into multi-directional flow. It is generally used in the air outlet of large areas such as the hall to distribute the fresh air evenly.

The diffuser selects the main control parameter tuyere type. Material, specification, outlet wind speed, total pressure loss and air flow range, etc.

According to the different types of diffusers, there are (1) square (rectangular) diffusers, circular multi-layer cone diffusers, and circular convex diffusers. The air flow pattern is flat-feed and attached type; ( 2) Self-operated temperature-controlled variable flow diffuser (3) returns (suction) dual-purpose diffuser.