Ventilation Deodorization---Built-in high-end motor with strong wind power, effectively help to remove the peculiar smell produced by new car leather cushions, sweat smell on the steering wheel and buttons , the smell of second-hand smoke and toxic gases emitted by cars, keeping the air fresh and comfortable. Quality Shell--- The shell of the dual-use exhaust fan is made of ABS material premium quality, wear-resistant, not easy to break or age, which provides great protection for the components inside. Adjustable Wind Speed---Our car purifier fan has a soft (low), comfortable (medium) and strong (high) wind for you to choose, one-button control to meet your different needs. Convenient to charge--- This portable car fan is designed with a High compatibility USB charging port, which can be charged with power bank ation, laptop, power adapter, car charger and other USB compatible power supply. Compact Size---The overall size of this double head car exhaust fan is approx. 25*8.5*12cm/9.84*3.35*4.72, not taking up too much space, widely used in car, home, office, etc. .