... Axial-Flow Exhaust Fan is of consistency,low noise,primary energy consumption,generous appearance. Axial-Flow Exhaust Fan/axile fanFA ... series of Axial-Flow Exhaust Fans are driven by single ... warehouses,offices,kitchens of canteens,basements,etc to exhaust and ventilate.They are for sunstroke prevention ... 1:29:42 Axial-Flow Exhaust Fan