Features: 1.High Performance: The speed is up to 3000RPM/min, which can achieve an exhaust volume of 3.3m3/min, which can easily and efficiently discharge air from the car. 2.Unique Design: 12V operating voltage, one way exhaust fan, will not cause air counterflow leading to the re entry of the excluded air into the RV. 3.Practical: This exhaust fan is mounted on the side of the motorhome and operates quietly, with low power consumption while provides strong wind flow. 4.Easy Installation: The air ventilation blade fan is easy to install with equipped screw and cap, provided with fan cover to avoid accidental injury. 5.Application: The product is small in size and space saving, which can be easily installed in the side exhaust ports of RVs, commercial vehicles, trucks, buses, and boats. Specification: Item Type: RV Vent Fan Material: ABS Working Voltage: 12V Speed: 3000RPM/min Exhaust Volume: 3.3m3/min Outlet Direction: One way Application: Suitable for RV, truck, bus, boat, etc.