Industrial processes in factory environments can produce large amounts of heat when in operation. They also tend to produce pollutants that make heavy demands on ventilation filters and fans. Consequently, designing the ventilation system with specific production conditions in mind is crucial, and ensuring ease of maintenance is critical to maximize production uptime. This is a concern for filter cleaning or replacement, safety equipment, and access to controls. In some cases, negative air pressure needs to be maintained to prevent contaminated air from affecting other areas of the building.

Proper ventilation is indispensable to proper temperature and humidity control, which has a host of benefits. It promotes worker comfort and safety, so that it can boost productivity and reduce absenteeism. Apart from promoting a healthy work environment, it can also help to prevent damage to machinery, materials or finished products.

Heavy duty air moving equipment is generally needed. Robust high-capacity free-standing fans, material handling fans for dust collecting and factory wall-mounted fans may all be used in different areas of a heavy industrial plant. Selecting fans is a complicated process. Incorrect fan sizing can result in insufficient capacity or excessive maintenance and energy costs.