Heating and cooling functions: This windshield heater can quickly remove fog or frost from the car windshield by heating the air. The car heater can also be used as a fan to cool your car in summer, keep it cool in summer and warm in winter. Fast heating: With a high-quality exhaust fan, you can heat the air quickly without waiting for the engine to warm up. Intelligent design, with cigarette lighter socket, built-in fuse, automatic power-off protection, safe to use. Two modes: This car fan has two modes, the switch indicates fan or heat. The high temperature heating power for the heater can ensure rapid heating and comfortable warming effect. Convenient to Install: Just plug it into your 12V cigarette lighter and turn it on, the base can be placed on the non-slip mat or attached with double-sided adhesive. Wide Applications: Ideal for long trips, the heater blower defroster is widely used in cars, trucks, vehicles, etc.