Ventilation grille R consists of two parts: a frame and a louvered grille. The grille is not fixed directly to the wall or ceiling, but is inserted into the frame, which is mounted on the surface. This allows the product to be easily removed for maintenance: the grille can be removed from the frame and then easily put back in place. The grille is equipped with slanted louvers, which help to hide the ventilation outlet, as well as an anti-mosquito net for protection against insects. R grilles are also available in white, beige and black colors.