The Ultra Hygiene Filter System reliably ensures clean, filtered exhaust air. Thanks to the large dust chamber, the PowerProtect dust bag can unfold optimally and, due to the multi-layered hi-tech filter material, has a high dust absorption capacity. Additionally, the innovative filter system prevents air blockages, thereby supporting high cleaning performance. The energy-efficient HighPower motor is Siemens' technical innovation: it provides thorough cleaning performance with extremely low power consumption, thanks to optimized aerodynamic fan blades. Convenient and practical, the accessories include an upholstery nozzle, crevice nozzle, and furniture brush, depending on the model. The suction power regulation, operated by a rotary knob, adjusts the cleaning performance to the type of flooring. Practical, simple, and quick.