USBpowered car auto air vent cooling fan system. Keeps air clean, helps to eliminate the smell of pets or tobacco. Auto fan blows hot air out of parked car. USB interface that you can powered via the power bank, car charger, etc.
The car fan can maintain comfortable temperature level for your car, no longer feel hot when you enter the car, fresh air is drawn in as hot, stale air vents out.
Unique 3-holes design improve the exhaust speed effectively, with on/off switch button and air vent control button, easy to operate.
Simple installation and strong practicability.