VENTILATION UNIT FOR PARTICULARLY VENTILATED, WINDOWLESS ROOMS

摘要

1. A ventilation apparatus for the supply and removal of air into and out of preferably forcibly ventilated, windowless rooms, with a controlled fan, characterized in that the fan is controlled by a photoelectric control unit (3) which is disposed in or on the fan casing (2) and which is arranged so as to respond to the light of the room illumination of the windowless room.