- Efficient Air Circulation: This car electric window exhaust fan effectively reduces the temperature inside your vehicle and minimizes windshield humidity, especially in humid conditions. It swiftly eliminates unpleasant odors, including cigarette smoke, formaldehyde, and other unwanted smells. - USB Charging Design: Conveniently connect the fan to your car's USB port for quick charging. It is universally compatible with all vehicles, including cars, trucks, SUVs, RVs, golf carts, and off-road vehicles. - High-Speed Exhaust: Featuring an upgraded motor, this exhaust fan operates at an impressive speed of 4000 revolutions per minute, significantly enhancing its exhaust capabilities for rapid air exchange. - User-Friendly Operation: Simply plug the fan into your car's USB port, turn on the power switch, and press the fan switch to start operation. The sensitive switch control allows for easy on/off operation, with separate controls for the middle and side fans. Use Scenarios: 1. On hot summer days, use the exhaust fan to cool down your car quickly, making your drive more comfortable. 2. After a long day with pets or smoking in the car, activate the fan to remove lingering odors, ensuring a fresher interior. 3. During rainy or humid weather, use the fan to clear fog from the windshield, enhancing visibility and safety while driving. This exhaust fan combines practicality with efficient performance, making it an essential accessory for any vehicle.