Spas and wellness centres are places subject to high concentration of germs, due above all to the presence of water, the perfect environment for the growth and spreading of micro-organisms. Fungi, viruses and bacteria can be found in micro-residues of water in changing rooms or showers, which carry the risk of various types of infection. Furthermore, in these environments, dirt deposits on anti-slip surfaces such as the edge of swimming pools create a slippery layer which is extremely dangerous for both personnel and guests of the structure. An accidental fall on a slippery swimming pool edge, on the wet floors of a changing room or on a shower tray are unfortunately some of the most frequent causes of injury which can compromise a holiday.