DC66 Animal is engineered for outstanding cleaning performance and ease of use. There's also a Tangle-free Turbine tool to remove dirt and hair from carpets and upholstery. With its self-adjusting cleaner head and re-engineered   brushbar, bristles dig deeper into carpets to remove more dust and dirt, while providing superior performance on hard floors. The DC66 has been built to achieve the highest suction at the cleaner head, twice the suction as any   other vacuum. The DC66 has remodeled    cyclones and uses the latest Ball™ technology.