The RGF APS is an extremely effective commercial air purification system. It works through seven patent pending technologies – PhotohydroionizationTM and six proprietary high efficiency cartridge absorbers. RGF has combined these technologies to provide you with the Ultimate Air Purification System APS. The RGF APS has proven to drastically reduce airborne odors, mold, and bacteria in the 90+ percentile along with significant smoke reduction. Airborne FOGs also are reduced over 90% for restaurant applications and mercury is reduced over 90% for dental applications.