Tile and grout. Steam the grout lines with the lance and a small brush, then wipe the floor with the rectangular brush wrapped in a cloth, which acts as a dirt extractor. The manual suggests working about 54 square feet (5 square meters) at a time so the dirt doesn't dry back on.
Kitchens and food prep. Range hoods, fryers, stainless counters and dish areas, with no chemical to rinse off afterward.
Restrooms and showers. Fixtures, radiator gaps, drains and the mold that settles in shower grout. A steam plunger clears slow sink drains.
Hotel rooms and healthcare. Draperies, bedspreads, mattresses, upholstery, wheelchairs and patient areas. NaceCare says the steam kills bed bugs and their eggs on mattresses.
A few cautions from the owner manual: test a small spot first, keep contact short on marble and wood floors, use light pressure with the small brushes on porcelain, and vacuum carpet before you steam it.