SEBO ESSENTIAL G1 (Gray) Features: • Hospital-grade filtration • Manual brush height adjustment • Guaranteed belts • Flat-to-the-floor profile • High performance • Excellent edge-cleaning performance • 40-foot cord for large cleaning radius • On-board accessories • Automatic shut-down for blockages • Easy and convenient brush roller change The Electronic Control is the brain of the SEBO essential G vacuums. It is equipped with warning systems and automatic shut-off capabilities that are designed to alert the user to machine problems such as clogs, full bag and brush obstructions. The Electronic Control will also tell you if you have the correct brush setting for optimum cleaning. The brush removes the dirt and hair and moves it to the suction chamber. The strong airflow carries the debris to the three-layer filter bag. The 3-Step Filtration System: First, the three-layer, full-size filter bag collects the vast majority of the debris. Then, any remaining particles are collected by the hospital-grade micro-hygiene filter. Finally, the micro-exhaust filter cleans the exhaust air that the vacuum emits. The S-class filtration system* as described above, results in 99.9% effectiveness to 0.3 microns making the SEBO essential G-Series vacuums the perfect choice for customers who suffer from allergies and asthma.