Steam Extractor™ The COMBY 3500 is an all-in-one steam cleaner with the function of suction. It is electrically operated and is ideal for a variety of indoor cleaning tasks. The COMBY 3500 is suitable for in-vehicle cleaning. The various attachments that come with the COMBY 3500 make it a true multitasking steam cleaner for sucking, cleaning, disinfecting and deodorizing at the same time!