Harmful fumes produced by chemical processes are required to be controlled and so fume exhausting is necessary in order to maintain a safe working environment. Chicago Blower industrial fume exhaust fans are used in various exhaust systems to remove the hazardous fumes from an area or manufacturing process. Depending on how corrosive the fumes are, our fans can be constructed with spark resistant materials as well as special alloys and coatings for higher efficiency and long lasting quality.