Extreme suction power of 5500 Pa Dust and dirt Roborock easily sucks up from carpets and different types of floors. The cleaning power has thus been increased even further, easy to cope with hair and dust on the floor. From a maximum of 5100 Pa on the Roborock S7 Pro Ultra to up to 5500 Pa on the S7 Max Ultra. Turn on Max+ mode and unleash the full power. Self-drying/warm air drying. Ensures lasting hygiene and fresh scent by preventing mop and drain from developing unpleasant odors. Automatic Mop Washing/Self Washing Automatically cleans the robot's mop during and after cleaning: the cleaning brush rotates 735 times per minute, moving over the entire surface of the mop to do so. 2,5L dust bag Automatic dust emptying Up to 7 weeks without manual emptying. The contents of the dust tank are automatically emptied into the station dust bag.