Suction device for a heating and/or air conditioning device in a motor vehicle, in particular a commercial vehicle

The device has an air-prominent spacer utilized for intaking outside and/or surrounding air, where filtered air is supplied to a vehicle inner space by a cyclone filter (3) i.e. interchangeable cartridge. The cyclone filter is utilized for separating contaminations and/or impurities. An aperture (5) is formed in an air-prominent housing (4). A diverting aperture (6) is flow-connected with a heating and/or air conditioning apparatus. A particle separation device (7) is formed at the air-prominent housing. A cartridge is formed at another air-prominent housing.