A fan is a machine element that moves and distributes air or gas. Fans are primarily used in industrial and technical facilities, but also provide the required air flow in households and air conditioning ventilation systems. Fans exist in different sizes and shapes to suit a variety of applications. The most common types are: Axial fans, diagonal fans and centrifugal fans.

Axial fan. © 2022 CasaFan GmbH – www.ventilator.de
Diagonal fan. Copyright: ebm-papst Mulfingen GmbH & Co. KG