OZONOS essentially opts for so-called ozone generators. Ozone generators use very high voltages to generate ozone and / or ionized air by means of electrical discharges (corona discharges). The latter are also called ionizers in the trade. The disadvantage: Coronary discharges produce toxic nitrogen oxides (NOX) in normal room air – the main pollutant of summer smog and absolutely undesirable in room air. In addition, the amount of ozone generated, usually more than 1,000 mg / h, is much higher than, for example, with the OZONOS with 2.5 mg / h (OZONOS AC-I model). The use of conventional ozone generators is only possible in a very controlled manner; staying in the same room during cleaning is strongly discouraged. In contrast, the OZONOS has been proven to be absolutely harmless to humans and animals and no harmful by-products are created. For this he received TÜV certification and household appliance approval. OZONOS Aircleaner is produced in accordance with ISO 9001: 2015 exclusively in Austria and is subject to strict controls. It is therefore not to be equated with harmful ozone generators.