APPLICATION: The floor swirl diffuser is used for supply and exhaust of cooled and heated air in facilities such as offices, meeting rooms, auditoria, concert halls, The grille can be mounted in the floor where an austere aesthetic construction is desired.Suitable for mounting in system Floors. Product feature .There is one swirl draught; 2.The level or vertical swirl form ; 3.Removable apron ; 4 ...