The PCO^TM technology of ACTIVE modules makes the most of the combined action special UV lamp rays with a catalytic structure consisting of a honeycomb matrix in a metal alloy mainly composed of TiO2 (titanium dioxide) and 3 other noble metals present in smaller quantities. 

The ACTIVE modules reverse the air flow, which gives rise to a photocatalytic reaction capable of producing hydroxyl radicals (*OH) and peroxide hydrogen (H2O2) in very small quantities (not exceeding 0.02 ppm). H2O2 and OH make it possible to disinfect both the air flow and the surfaces of the ventilation ducts thanks to the high efficiency in the decomposition of pathogens.

The ACTIVE modules are also equipped with two devices with negative ionization technology that makes these models more effective in reducing odors and also active against ultrafine dusts that turn out to be the most dangerous when inhaled.