Whether in the production of food and medicines, in horticultural businesses, in hospitals, or in every private household - disinfection and the reduction of pollutants in water and on surfaces play an important role in many areas of application. The addition of chemicals should, however, be avoided as extensively as possible in all these applications. This can be made possible through, for example, treatment with electrochemically produced ozonated water, a process which the Fraunhofer IST has been researching and developing for many years now.