The intelligent system of the Roborock S7 Auto-Empty Docks keeps your living room completely dust-free. You place the docking station in your room, and the Roborock S7 robot vacuum automatically starts to clean the space. Once the vacuum has completed its round, it returns to the docking station, which then collects its contents. The self-emptying station retains 99.99% of the dust in the house in its container, thanks to the multi-layer HEPA 13 air filtration. The station filters out the smallest particles down to a size of 0.3 micrometers from the air. This effectively removes pollen, pet hair, and other small particles from your home.