Even on the hottest days‎,‎ your parked car is kept cooler and the air fresher thanks to this solar‎-powered ventilator/fan‎.‎ It maintains a safe‎,‎ comfortable temperature level for your return‎.‎ Place vent on top of window‎,‎ then close window and lock up‎.‎ Its solar panel uses sunlight ‎- not the car‎'‎s electrical wiring or batteries ‎- to power the built‎-in fan‎.‎ Fresh air is drawn in as hot‎,‎ stale air vents out‎.‎ It even helps to eliminate pet and tobacco odors‎.‎ Installs in seconds and fits windows on all makes and models‎.‎