1、Function: The double exhaust fan will keep the air cool on a hot summer day, clean energy, green way, help you eliminate pet odors and more. 2、Advantage: Eliminate peculiar smell this portable exhaust fan can effectively help you maintain indoor air circulation, and outdoor solar panels can effectively convert sunlight into electricity. 3、Solar Panel: The solar panel is energy saving and environmentally friendly, which can maintain the service life of the fan, with stable performance. 4、Waterproof: The waterproof design ensures the exhaust fan can be installed indoors or outdoors, suitable for RV, yacht, greenhouses, pet houses, chicken house, bathroom. 5、Easy to Install: Flexibility when choosing the location of your solar panel and ensures maximum sunlight exposure. Connection cable is provided for easy installation.