Circular diffusers are generally used for heating and cooling air supply. Usually mounted on a ceiling. The blowing airflow is attached (flat feed), and its structure is multi-layered cone-shaped. Because the induced airflow in the room is greater than the exhaust air volume, the blowout airflow slows down faster. Therefore, it can supply a large air volume relative to any size area, and the size of the diffusion radius changes within a given air volume range. Suitable for hospitals, theaters, classrooms, concert halls, libraries, amusement halls, theater lounges, general offices , Shops, hotels, restaurants and gyms.