VENTILATION DEVICE

A ventilation device (12) for a vehicle has a frame (10) made of hard plastic that can be fixed in an opening of the vehicle, wherein the frame (10) has recesses, and a check flap element (30) made of a flexible material, in particular a plastic, wherein the check flap element (30) extends essentially over the entire frame (10) and in the area of the recesses has cutouts (40) formed in one piece with the check flap element (30), which in a closed position rest flat against bearing surfaces (36) running around the recesses and in an open position can be moved away from the bearing surfaces (36).