The Tineco PURE ONE S11 Cordless Stick Vacuum Cleaner brings smart sensor technology to a high-performance stick vacuum for a completely new, intelligent cleaning experience. With the help of an innovative iLoop Dust Sensor, the PURE ONE S11 detects invisible dust, hair and pollen and adjusts suction power accordingly while a four-stage, fully-sealed filtration system captures tiny dust particles and allergens to improve air quality in your home. The all-in-one LED display shows important cleaning information such as dust volume, malfunction alerts and Wi-Fi connection status, enabling you to monitor cleaning progress instantaneously.