Solar Panel Ventilator Vent Fan for House, Home, Roof, Shed, Boat - Mounts on Roofing, Fiberglass, Wood, Metal, Glass almost any type of Surface Easily Mounts on Ceiling, Wall, House, Car, Boat, RV, Shed, Doghouse, Outhouse, You Name it! No operating cost, charging by solar is free, safe, fast and easy Helps to keep air fresh and removes odors from cooking, animals, etc Lets hot air out & cool air in Circulates the air slowly and smoothly Weather resistant, and water resistant Simple, easy to install, no wiring, no plugs, no electricity, no battery, no noise