The powerful vacuum motor with protection from the bypass airflow valve provides highly efficient performance. Self-adjusting brush high ensures machine is operating at its optimum performance. The flat-to-the-floor profile allows cleaning under furniture whilst the long mains cable provides a large cleaning radius. Ensign Sensor utilises high performance S - Class filtration including a three layer filter bag and double size electrostatic exhaust filter. This results in significantly improved air quality during and after vacuum operation.