Air blow in device for ventilating air.

摘要

In an air ventilating device air jets are blown into the room to be ventilated through nozzle elements (4) each comprising a pipe (6) surrounded by a cylindrical or spherical part (5), taken up movably for rotation in sockets in the wall of an air supply box (15). The air passages through the pipes (6) and parts (5) are considerably longer than the diameter of said parts (5).