During photocatalysis, natural oxygen (O2) is converted to ozone, a reactive form of oxygen (O3), using UV radiation from ozone-generating lamps. The ozone bonds with odor producers contained in exhaust; organic substances, and substances containing grease and odors are oxidized. The remains are biodegradable and are conducted away with the exhaust. This method is used in the food, textile, chemical, and waste management industries as well as in processes containing solvents.
Another method for treating air is LTP plasma* technology, in which gas-phase organic carbon compounds, such as odor molecules, are eliminated and bacteria and viruses are destroyed. Solids and aerosols are separated out during the process in stages using pre-filters. This technology offers diverse options not only for use in industry but also in commercial kitchens and the food services (e.g., display cooking – a type of experience dining “show” where dishes are prepared in front of guests). Ventilation in living areas can also be equipped with this technology.
For certain types of exhaust air, e.g., for exhaust airflow in the textile industry that contains ammonia or tar, oxytec Exhaust Air Scrubbers are located in front of air purifying equipment based on UV-C ozone.