For all vehicle owners who want to easily and safely provide their car with fresh air. For example, to spend the night in the vehicle, or to leave a dog alone in the car for a short time. Problem-free, since cumbersome assembly work or annoying TÜV - tests are not necessary. If necessary, lower the window pane, insert the fresh air vent diagonally into the window guide and raise the window again. Done! Safe, because the fresh ventilators are stable. They are made of aluminum sheet, which receives a high-quality structure coating in the color black. Thus, the fresh ventilators are largely insensitive to scratches.