The Roborock F25 Ultra represents a significant advancement in home cleaning technology, focusing on chemical-free sanitisation of hard floors through thermodynamic steam. This Australian-focused news piece details how the device uses 150-degree Celsius steam to eliminate bacteria and pathogens without chemical detergents. The article explains that traditional supermarket cleaners often leave sticky residues that attract more dust and can damage appliances through excessive foaming. In contrast, the Roborock F25 Ultra employs a boiler system that heats water to 180 degrees Celsius, creating steam that liquefies caked-on grease and stubborn dirt upon contact. This process achieves 99.9999% pathogen eradication through natural thermal denaturation of organic proteins. The device features dual brushless motors for improved maneuverability, eliminating rolling resistance on various floor surfaces. Its battery system provides 60 minutes of continuous runtime in eco mode, making it suitable for large Australian homes. The article also addresses common questions about steam cleaning, confirming that the technology effectively kills bacteria without chemicals, and that using standard cleaning solutions is not recommended as it can damage the appliance. The piece positions this technology as a safer alternative for families with children and pets, as it leaves no harmful residues on floors. The content is presented as branded material from Roborock, but the technical details about the steam sanitisation process are clearly explained within the article.