HG eliminator of all unpleasant smells at source was specially developed to remove unpleasant odours in a biological manner. This product does not mask the smell but rather removes the source of the smell by means of natural enzymes and microbes, so that the unpleasant smell does not return. HG eliminator of all unpleasant smells at source removes odours caused by urine, faeces, vomit, pets, nicotine, fruit, vegetables and many other sources, from virtually all absorbent surfaces. The source of the odour must be removed beforehand whenever possible. Work on the remainder which cannot be removed by spraying it liberally with HG eliminator of all unpleasant smells at source. It is important that the product is applied to the source of the odour in order that it can be completely removed. Depending on the porosity of the surface, the source of the smell will take 20 minutes to a few hours to disappear. The odour will have disappeared by the time the surface treated is dry.