Features: Defogging in the rain, giving you a clear view. This car exhaust fan is suitable for universal cars. Detoxification: Excessive temperature in the car will release an excess of 20 times of toluene (toluene toxicity can cause abortion in pregnant women and blood cancer in children). Deodorization: Exhaust the smell of smoke from the outside of the car to keep the air inside the car fresh. Cooling: When you first enter the car, there is no longer a feeling of sultry heat. Health: Air convection is good for health, so you and your family can enjoy a non-toxic and harmless ride environment. Protecting the car's electrical appliances: In-car electrical and electronic items can affect their performance and service life due to high temperatures. Energy-saving: When the temperature inside the car is high, it will take some time for the air-conditioning inside the car to take effect after each drive. It will make your car cool and fuel-efficient. Suitable for trolleys, trucks, trucks. Tips: It is a solar ventilating fan with a power of 0.3 watts. The buyers should not think that it is an electric fan. It is mainly a function of ventilation. If the window is equipped with anti-pinch, it may not be closed. Therefore, buyers who install the clips should find their own way. Specifications: Condition: Brand New Material: ABS Color: Black Weight: Approx.345g/12.2oz Size: (length) 15* (width) 11* (top thickness) 6cm/5.9*4.3*2.4in Fitment:for trolleys, trucks, trucks Package List: 1 * Exhaust Fan 1 * Instruction Manual 1 * Rubber Strip . Note: Please note that windows cannot be used for sunscreens.