The Axial flow fan is the type of compressor, which produces airflow parallel to the axis, thus the name. These fans are equipped with impellers, which suck the air in and discharge in the same direction of the axis. An axial flow fan moves air or gas parallel to the axis of rotation. The flow fan is a type of industrial fan used to cool machines and equipment which heat up after use. Axial flow fan is suitable for a larger flow rate with a relatively small pressure gain and a centrifugal fan for comparatively smaller flow rate and a large pressure rise.