Features: The Auto Solar Powered Fan is a ventilator to help cool your car on the hot day, keeping air fresh inside the car. Built-in 4000mAh battery and solar energy powered, energy-saving and environmental protection. Helps to eliminate the peculiar smell produced by the leather cushions of new car, smell of sweat, pets, second- hand smoke, and the toxic gases emitted by cars. UV Light for Mosquito Killing: The UV light can effectively kill mosquitos in your car, providing you and your family with a healthy and comfortable environment. Portable Charger Function: This solar energy air exhaust fan can also be used as a portable power bank for convenient use. Easy to install: It installs in seconds, and fix with all car windows.