Polti's cleaner transforms ordinary tap water into very fine, dry, high-pressure steam heated to 130C which releases and dissolves dirt and grease faster and more effectively than conventional methods.Its stainless steel tank has a capacity of 2.9 litres(uses tap water), providing two hour`s worth of steam cleaning and it will handle carpets, upholstery and mattresses - leaving them dry to the touch within minutes. At the same time this cleaner also kills germs, bacteria, household dust mites giving health benefits to asthma and allergy sufferers. Features the `Super Power` system for an even more powerful steam in a shorter time and incorporates a `Pressostat` facility in order to ensure steam is delivered at constant temperature from 0 - 110 grams per minute.Also features a water tank empty indicator light and visible pressure gauge.