The answer to 'what is ceiling fan' is a type of electric fan mounted on the ceiling of a room. Ceiling fans are designed to circulate air and create a cooling breeze, helping to keep a room comfortable during warm weather. They consist of a motor, blades, and a light fixture (optional) that are installed in the ceiling, usually in the center of the room.
Ceiling fans are a popular choice for homeowners because they can help reduce energy costs by circulating air and reducing the need for air conditioning. They are available in a variety of styles, sizes, and finishes to complement the decor of any room.