An electric fan, also known as a fan or fan, is a household appliance that uses an electric motor to drive the rotation of fan blades to accelerate air circulation. It is mainly used for cooling, cooling, and air circulation. Widely used in homes, classrooms, offices, shops, hospitals, hotels and other places. The common household electric fan essentially belongs to axial flow fan, that is, the direction of wind flow is parallel to the rotation axis of the fan blades.