Blowers move high volumes of air at lower pressure or vacuum levels than air compressors or vacuum pumps. Regenerative blowers use impeller blades to accelerate air outward and forward. Direct-drive high-flow turbo blowers use impeller blades to accelerate large volumes of air outward and forward at reduced pressure. Positive displacement blowers use rotating lobes to trap air and force it to move. Regenerative blower accessories enhance the use and capabilities of regenerative blowers. Regenerative blower replacement parts repair worn or damaged regenerative blower components.