Disclosed is a ventilation device for a vehicle including a frame defining an opening and a closing device of the opening. The ventilation device has a first zone. The closing device includes at least one main closing flap able to close off the first zone and able to rotate about a first axis of rotation extending along a single first direction of rotation. The ventilation device has at least one second zone. The closing device includes at least one secondary closing flap able to close off the second zone and able to rotate about a second axis of rotation extending along a single second direction of rotation for the or each second zone, the second direction of rotation being separate from the first direction of rotation.