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. .