The NMB Cooling Fans offer high torque, efficient motor technology and aerodynamic impeller design to provide many years of continuous reliable performance for the most demanding applications. The primary purpose of the industrial cooling fans is to blow cold air and drive hot air out of the environment. Therefore these industrial fans are also called industrial cooling blowers. Industrial fans are the mechanical devices that create fluid flow for industrial purposes. The cold air intake or hot air exhaust depends on the design and construction of the specific fan. The NMB Cooling Fans are made of heavier-gauge materials than office fans to withstand daily use.