The fibres of a synthetic carpet become damaged when walked upon, so that they trap dirt more easily. HG carpet and upholstery cleaner 1 Litre (HG Product 95) removes the dirt and fills up the gaps in the fibre surface with a dirt repellent layer. Woollen carpets have more or less the same problem, as the natural wool grease gradually disappears. HG carpet and upholstery cleaner replenishes it with a dirt repellent material. Treat the stains beforehand with HG spot and stain spray cleaner. Now spray the HG carpet and upholstery cleaner using a special machine and vacuum the surface immediately or brush thoroughly. Rub dry using a towel. One litre is sufficient for 30 square metres of floor surface area.