Window deflector
A window deflector (also known as anti-turbulence air deflector, anti-turbo, air deflector or simply deflector) is a transparent plastic fitting, fairing, or accessory, which can be mounted above the doors of vehicles, such as cars or trucks, to protect the interior from rain or other precipitation in case of slightly opened windows. Deflectors may also be fitted to sunroofs to change the flow of air and reduce turbulence generated by the vehicle, in order to obtain specific advantages depending on the type of application.