Photolytic oxidation is a process that ensures that organic substances such as greases or odours are "cold burned" or destroyed. This is done by irradiating the contaminated kitchen exhaust air with VUV light. The ozone that is briefly produced triggers oxidation. The special UV-C ozone lamps from BÄRO provided for this, which generate ozone with the help of vacuum UV radiation on a wavelength of 185 nm, are positioned in hood housings directly behind the aerosol filters. This enables longer cleaning and maintenance intervals for kitchen air extraction systems and also facilitates cleaning and maintenance.