One of the most difficult tasks in the cleaning of homes, offices and businesses is the successful elimination of germs and bacteria. Indeed many disinfectants available on the market today are tough in getting rid of dirt and can offer short term protection. The disinfection methods often used are therefore only effective for a few minutes while the solution dries. After surfaces are cleaned they can become recolonised with microorganisms soon afterwards with such common actions as walking across a carpet, opening curtains, sitting on a couch or touching a surface. Nearly all surfaces are prone to contamination from germs that cause a whole range of effects from bad odours to the spread of disease.