A Centrifugal Blower is an air moving device that uses an impeller to pull air into a tube like structure and release it at a 90o angle. The impeller is a set of blades inside the blower that rotates at a high rate to pressurize and move air. It is made up of a fan wheel, housing and a drive mechanism and at times dampers for both the inlet and outlet. Centrifugal Blower is widely used for high pressure applications; they are found in processing industries as an essential element in air pollution control systems.