PUROH is an innovative technology for disinfection and prevention of contagion, particularly suitable for the education sector due to its effectiveness in reducing contagion and absenteeism due to illness. PUROH uses the generation of the Open-Air Factor through a chain reaction from peroxide, replicating the natural process of Advanced Oxidation that occurs in the upper layers of the atmosphere. PUROH technology is economical, effective, and harmless, and has been shown to reduce the presence of common pathogens such as rhinoviruses, influenza, and seasonal infections in schools where it has been installed. In addition, the neutral radicals generated also have a special efficacy in neutralizing volatile organic compounds, odors, allergens, and contaminating particles, which improves the air quality in classrooms and is particularly beneficial for children’s health. PUROH is a technology certified by the FDA and the EU.