A ventilation device is for ventilating a motor vehicle interior. The ventilation device comprises an air supply channel and an outflow region. The outflow region is provided with a first component and a second component which can be brought into at least one first state of displacement and a second state of displacement in relation to each other, in order to generate a first air flow and a different second air flow. The first component and the second component have a first lamella structure and a second lamella structure, according to the state of displacement, for producing a first air flow and a second air flow with different opening angles.