The Hoover TwinTank Disinfecting Steam Mop combines with Hoover SteamPlus Disinfectant solution to deliver a one two punch on germs and harmful bacteria around the home. The two tank system gives you the ability to clean with steam alone or to add Hoover SteamPlus disinfectant solution with the turn of a dial. Steam alone can not eliminate harmful bacteria dwelling on the floors in your home without a substantial exposure time. When used with Hoover SteamPlus solution, the Hoover TwinTank Disinfecting Steam Mop kills or removes 99.9% of harmful bacteria including: Influenza A, Swine Flu (H1N1), Staph, Salmonella, MRSA, E.Coli, and more. Clean every area of your home with the included accessories: carpet glide to refresh carpets, triangle swivel nozzle to get into corners and to maneuver around furniture. The steam ready indicator lets you know when the unit is ready to use.