Purification function: The car fan heater heats the car air quickly in winter. The air in the car is cool and warm.2 in 1 heating and cooling functions: This car fan heater can blow natural wind and warm air, designed to quickly clear frost, fog and haze on your vehicle& 39;s windshield. Very useful in winter.Safe and durable: This portable car heater is made of ABS and heat-resistant polymer plastic, the convenient and handled heater features fast heating. Practical environmental protection, low energy saving, low noise, two adjustable hot and cold air, very suitable for summer and winter.Compact design: easy to use, hot and cold, just insert it into the vehicle& 39;s cigarette holder and open it.Wide application: 12V 150W powerful plug-in fan, heater and defroster. It simply plugs into the 12V cigarette lighter socket. Suitable for all 12V vehicles. It is ideal for defrosting or demisting windows and windshields."