Exhaust Fan for Aluminum Anodizing Line Ventilation System Overview This industrial exhaust fan serves as the main power source of the anodizing line fume-extraction system. It moves large-volume air through ductwork to pull waste gas away from process tanks. The fan is built to withstand humid and slightly corrosive air flow conditions commonly found inside metal-finishing workshops. It works cooperatively with other ventilation-system parts for complete workshop air exhaust