Centrifugal Blower is a blower designed to provide more air in a confined area. The Centrifugal Blower has a number of blades mounted around the hub, which turns on a shaft that passes through the housing. The air enters the inlet of the impeller and by use of centrifugal force; Centrifugal Blower accelerates over the impeller. A Centrifugal Blower can come in three different types of impeller blades. They can come with forward curved blades, backward, curved blades and straight radial blades. These impellers can open type or closed type. Each design has its unique features. In zero loss direct drive blowers, motor body is directly mounted on to housing and impeller is fixed on to root shaft. This arrangement reduces to transmission losses to zero.