We recommend Guardian Air Model # HVAC-PHI-212-GA over any other purifiers, because it does not need the pollutants to travel to the air handler for UV treatment or filtration. Guardian Air is proactive and sends ionized aggressive advanced oxidizers into the room to destroy the pollutants at the source, in the air and on surfaces, before they can reach your family, clients or employees.

RGF first developed its Advanced Oxidation Technology over 20 years ago. Over 1 million RGF Cells are in use around the world. The Guardian Air is used by many Fortune 500 companies, the US Government, cruise ships, hospitals, nursing homes, schools, commercial buildings and homes across the world. The Guardian Air has been approved by the EPA, USDA, FDA and US Government.
The Guardian Air by RGF® is designed to eliminate sick building syndrome risks by reducing odors, air pollutants, VOCs (chemical odors), smoke, mold, bacteria and viruses with Photohydroionization (PHI) Technology. When the HVAC system is running, the HVAC-PHI Cell creates an Advanced Oxidation Process consisting of hydro-peroxides, ozonide ions, super oxide ions, UV light rays and hydroxide ions, all “friendly oxidizers” – oxidizers that revert back to oxygen and hydrogen after the oxidation of the pollutant.

The HVAC-PHI Cell is easily mounted into air conditioning & heating system air ducts where most sick building problems start. However a professional installation is highly recommended.

The RGF PHI™ technology has achieved the following results in both commercial and academic independent lab tests:

• 4-log reduction (99.99%) surface bacteria/virus reduction
• Tested and approved by the Chinese Government for protection against the SARS virus
• Over 80% VOC reduction
• 97% airborne bacterial reduction
• 99% reductions of Ecoli, Listeria and Strep
• 85% odor reduction
• 100% reduction of Bird Flu
• 97% airborne mold reduction & 99+% SWINE FLU
• Hospital approvals Infectous Diseases – U.S. and International 99% reduction of Staph (MRSA)
• 99% food surface microbial reduction
• Major US city school reports 20% reduction in absenteeism
• Approved by the USDA, FSIS and FDA for use in food processing plants
• Fox News three-part indoor air series featured RGF and concluded substantial mold and bacteria reductions
• RGF’s PHI™ technology has been featured on Fox, ABC, CBS and in Popular Science Magazine