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 provide cooling in a space by creating a gentle breeze. They are a popular and energy-efficient alternative to air conditioning, especially in warmer climates.
Ceiling fans typically consist of a motor unit that is installed in the ceiling, with multiple blades that rotate to move the air. They come in a variety of styles, sizes, and finishes to suit different decor preferences. Many modern ceiling fans also include lighting fixtures, allowing them to serve as both a functional and decorative element in a room.