Purify air, remove smell and the fetid odor inside car, keep it well-ventilated.Easy to install, just clip it on your car side window and stuck rubber strip into the window top edge.Powered by solar power, working as it is under the sun light, with only 0.3W, low consumption.Protect your car appliance or furniture from corrosion or damage due to high temperature inside car, prolong its lifespan.