Portable Electric Car Heater 12V Heating Fan Defogger Defroster Demister A+ Description: This heater or fan will blow instant heat or cool air. It is ideal for defrosting or demisting window and windscreens. It will warm your car within seconds. Or if you are feeling hot, like in the summer, you can adjust it to blowing cool air instantly, keeping you cool at summer and warm in the winter. Such a humanized product, why not bring it home now? .