The Precision™ Canister was aerodynamically engineered to give you tighter and quieter construction. The motor creates maximum air flow and strong cleaning suction; air ducts fit snugly together for smoother air flow. The result? State-of-the-art vacuuming power with reduced noise. It's the only canister which Microseal™ Fresh Air Technology, which captures the ultra-fine particles that pollute the air. This assures you of thorough cleaning by providing maximum dust pick-up on floors, stairs and upholstery. The Precision's optimum performance sensor system automatically monitors the vacuum's cleaning performance to ensure peak efficiency. Convenient integrated accessories are thoughtfully stored for easy access. The cord automatically retracts to help make storage fast and easy.