A filtered exhaust fan is a type of fan that is designed to remove air from a space and filter out any contaminants or particles that may be present. This type of fan is often used in commercial and industrial settings, such as factories, warehouses, and laboratories, where it is important to keep the air clean and free of contaminants. The fan works by drawing air in from the space and passing it through a filter before releasing it outside. The filter can be designed to remove particles of a certain size, such as dust, pollen, and smoke, as well as any other contaminants that may be present. This type of fan is an important part of any ventilation system, as it helps to keep the air clean and safe for those working in the space. Additionally, it can help to reduce energy costs by ensuring that the air is filtered and not simply recirculated.