Fan blades are the flat, rotating pieces that move through the air to create a breeze. They are typically made of a lightweight, durable material such as plastic or metal, and they are attached to a central hub or blade bracket, which is connected to the motor of the fan.

Fan blades are an essential part of a fan, as they are responsible for generating the airflow that cools a room or moves air around. The shape and size of the blades can affect the performance of the fan, as well as the amount of noise it produces. For example, larger blades may be more effective at moving air, but they may also produce more noise due to the increased surface area. Similarly, blades with a more aerodynamic shape may be quieter, but they may not be as efficient at moving air.

Fan blades are found in a wide range of fans, including ceiling fans, desk fans, and floor fans. They are typically mounted on a blade arm or blade bracket, which allows them to rotate around the central axis of the fan.