Removal of paint fumes and paint over-spray from a manufacturing area is a specialized ventilation application. The airflow volume must be low enough to not affect the application of the finishing system materials and must be great enough to remove any toxic over-spray or fumes from the workspace. This is accomplished by precise removal of air across the face of the spray booth and through the paint arresters or scrubber system. The fans must be of adequate pressure rating to overcome the filtration losses. At the same time, the fans must be quiet enough to allow for worker exposure during a production cycle. Sometimes local codes require additional environmental systems such as solvent recovery or fume removal.