Dayton exhaust fans pull out odour, moisture and fumes from inside to outside of a vent in warehouses and offices. They have galvanised steel construction with 3 aluminium bladed propellers for corrosion resistance, durability. They are capable of withstanding a maximum ambient temperature of 104 degrees F and feature direct drive motors with class B insulation for directly connecting to the fan through shafts or axles, thereby increasing energy efficiency. Choose from a wide range of these exhaust fans, available in motor speeds ranging from 1125 to 1753 rpm.