The Ceiling Fan is a mechanical fan mounted on the ceiling of a room or space, usually electrically powered, that uses hub-mounted rotating blades to circulate air. They cool people effectively by increasing air speed. The fan can save you bundles of money on your energy bill since it uses less electricity than an air conditioner. In default mode, fan blades turn and push air downward, creating a downdraft and making a room feel substantially cooler. The Ceiling Fan has a primary purpose is to circulate air in a room. Air conditioners chill air, but ceiling fans push it around, which means they’re useful for both cooling and heating.