Abstract: A fan device which is built into a vehicle chair, and is arranged to ventilate away air that is drawn through the covering and filling of the vehicle chair, which has an electrically driven fan (9) of radial type attached at the bottom of the chair. The fan wheel (17) extends from the driving cover (14) of the motor (13), which extends up into the inlet (30) of the fan. The fan (9) is attached to a carrying means (39) in the chair which is located on the underside of the filling (40) and has passages (65) for the ventilating air adjacent to the fan inlet.

Abstract: A device for ventilating chairs which has an air-permeable covering portion (13, 14) which is applied over the filling (7) of the chair, an insert (15; 59) located between the covering portion and the filling and a suction device (26) which through a system of suction openings in the covering (57, 60) and the insert (40, 56) evacuates the ventilating air. The insert (15) is joined with the covering (9) of the chair to an integrated unit, which is tightened against the filling (7), and from the insert (15) there extends a duct connection (40, 25) tightly separated from the filling, which leads the air to the suction device.