The Bissell MULTICLEAN Spot & Stain is a portable deep cleaner that permanently removes tough spots and stains using water, BissellL formula & powerful suction to clean & protect surfaces. It is portable and lightweight, with a 2 tank system that allows to clean with clean water while the dirt and grime are stored in a different tank. It has 4 specialized tools & quickly cleans messes on carpet/rugs,upholstery, car interiors and mattresses.