Pax Windows Vents consist of an indoor part and an outdoor part that is installed in the window arch or frame. Holes or gaps for air intake are made according to a template, do-it-yourself installation. The window vents can be installed both above and under the window. They have adjustable air flow and a discreet design in aluminium or plastic. The window vents are available in three designs, customized for various ventilation needs. The outdoor part is fitted with an insect grille.