·It can help to exhaust the peculiar smell produced by the leather cushions of new car, smell of sweat on the steering wheel and buttons. It can keep air fresh inside the cars and provide you and your family with comfortable environment. ·Car Solar Powered Fan is installed on the window, there is no plug-in installation line, and it will not damage the vehicle. ·Two-headed car solar radiator exhaust fan is equipped with a temperature display, which displays the temperature inside the car in real time. ·Environmentally friendly polycrystalline solar panels can charge the battery without a power source. ·The high-efficiency exhaust fan rotates at 4500 revolutions per minute. It does not need the power supply inside the car, only need the solar power or batteries.