DEL Ozone exclusive Plasma Gap ozone technology, with integrated Trident Germicidal Ultraviolet Technology. When ozone and germicidal UV are combined in a single system, the UV light interacts with the ozone, and the resulting chemical reaction generates hydroxyl free radicals. Hydroxyl free radicals have even more oxidation potential than ozone, the power of the whole system is increased; creating the synergy of the Advanced Oxidation Process (AOP)