The Light Commercial HVAC-PHI Air Purification System by RGF® is designed to eliminate sick building syndrome risks by reducing odors, air pollutants, VOCs (chemical odors), smoke, mold, bacteria and viruses. The units are easily mounted into air conditioning and heating systems air ducts where most sick building problems start. When the HVAC system is in operation, the Light Commercial PHI-Cell® creates an Advanced Oxidation Process consisting of Hydro-peroxides, super oxide ions and hydroxide ions. All are friendly oxidizers. By friendly oxidizers, we mean oxidizers that revert back to oxygen and hydrogen after the oxidation of the pollutant. These oxidizers and the UV energy kill microbes in the HVAC unit as well as throughout the room at the source of contamination.