Fuel fired steamer to steam clean parts, wheels, interiors including vents, carpeting, seats, etc., sanitize areas eliminating bacteria and odors. Provides continuous heated vapor steam making it non toxic. See spec sheet for requirements and operating ranges. This machine is only a year and a half old and paid $11,000, very little use, works great and as it should, just do not use it like we thought we would. You will not find a used machine like this in better condition.