タイトルまたは説明

Square air diffuser, FFS-A, FFS-B, FFS-C are three kinds of square air diffusers which diffuse the airflow flatly, they are straight-edge diffuser, chamfer-frame diffuser, and new type of detachable central diffuser. They are mainly used in studios, hospitals, theaters, classrooms, concert halls, libraries, recreation hall, theater lounge, general offices, shops, hotels, restaurants, gymnasium, and so on.
  In order to avoid the noise interference in variety enviroment, not only need to determine the wind speed of neck according to performance table. but also should consider the installing height and surroundings. Square air diffuser is often used with the opposed blade damper(OBD). It can be divided into common removable diffuser(FFS-A/FFS-B) and new removable diffuser(FFS-C) by structure.