Sätt och anordning vid rumsventilation för s.k. renrum

摘要

A method and a device for ventilation of a room with walls (11) and a ceiling (10), clean air being conducted at least to a portion of the room from the ceiling through a first air stream (12), and air being exhausted through first discharge openings (15) provided in the walls (11) of the room. Air contained in a second air stream (13) along at least one wall (11) is exhausted from the room through at least a second discharge opening (32) provided above the walls of the room outside of a designated work area in the room. The supplied is conducted towards a sloping flow director (20) arranged at the second exhaust opening (32).