Medium pressure fans are centrifugal industrial fans built to move air against the higher resistance of long duct runs, filters and extraction hoods, where a standard axial fan would struggle. We stock the Helios AMD and AMW medium-pressure ranges in sizes 225 to 400, with motor speed options for different duties. Not sure which model you need? Call our team on 01603 986784 with your airflow and duct details. For lower-pressure duties, see our cased axial fans.