Patent ID: 8419513

Claim:
A ventilation device ( 10 ), in particular for a vehicle interior, comprising a frame ( 12 ) which has at least one opening ( 16 ), and at least one non-return flap ( 20 ), the non-return flap ( 20 ) having at least one recess ( 26 ) provided thereon through which a holding member ( 22 ) provided on the frame ( 12 ) extends, and the non-return flap ( 20 ), depending on the active pressure differential, being adjustable between a closed position, in which the non-return flap ( 20 ) rests against the frame ( 12 ) and closes the at least one opening ( 16 ) of the frame ( 12 ), and an open position, the holding member ( 22 ) being deformable between a mounting position, in which the non-return flap ( 20 ) can be mounted to the holding member ( 22 ), and a locked position, in which the non-return flap ( 20 ) can not be dismounted, wherein a free end ( 28 ) of the holding member ( 22 ) includes an elastically deformable barb for placing the holding member ( 22 ) in the locked position.