Feature:1. The product has the functions of cooling, deodorizing, detoxification, defogging in rainy weather, and protecting the electrical appliances in the car. Suitable for general‑purpose models.2. function. If the temperature inside the car is too high, it will release 20 times the excess toluene.3. With the function of detoxification, lowering the temperature can reduce toluene release, provides a freshing air environment.4. Protect electrical appliances and reduce the temperature in the car to protect the performance and life of electrical appliances and electronic items.5. Healthy, energy‑saving, air convection is good for health, with it, your car will be cool and fuel‑efficient.How to Use:1. Install the exhaust fan on the window glass2. The exhaust fan function can be automatically turned on under sunlightSpecification:Iteam Type: Car Exhaust FanWeight: Approx. 328g / 11.6ozVoltage: 2VPower: 0.5WProduct Material: ABSSolar Panel: Monocrystalline siliconProduct Size: Approx. 15 x 11 x 6 cm / 5.9 x 4.3 x 2.4 in Package List:1 x Exhaust Fan 1 x Manual1 x Sealing TapeNote:1. This product statement: It is solar energy ventilating, with a power of 0.5 watts. Don't think it's an electric fan. The main function is to ventilate. The car window is installed with anti‑pinching, it may not be closed tightly. Therefore, the buyer who has installed the anti‑pinch hand, bought the car window and said that the car window is not closed tightly, please think of a solution by yourself.2. As long as there is sunlight on it will run fast,10 minutes can take away the harmful gases in the car.