HIGH QUALITY: Portable car heater adopts ABS material, high heat conversion, no open fire, safe and instant heating. Cigarette lighter plug is built with fuse for safety use, providing auto power off protection. DUAL PURPOSE: This car heater defroster is practical for self-driving tour, traveling and camping. It can serve as a heater in winter and cooler in summer, purify the air in the car. EFFECT: Car window defroster. To defrost and demist for the windshield, keep window dry and ensure safe driving. Purify air, anion neutralizes the dust and smoke at the car. EASY TO INSTALL: Window defroster, Use adhesive tape or screw to fix(Screw is not included). Easy to install, just plug it into your cigarette lighter socket, suitable for 12 voltage car. LARGE APPLICATION AREA: Adjustable shaft makes the fan rotate 360 degrees, which is more convenient and offers large application area.