Effectiveness of photocatalytic filter for removing volatile organic compounds in the heating, ventilation, and air conditioning system

Air handling units must be added in typical HVAC systems to remove indoor air pollutants, such as volatile organic compounds (VOCs). The aim of that paper is to investigate the VOC removal efficiency of a photocatalytic filter in a HVAC system. The resullts of the experiments carried out in a stainless steel chamber are presented. It appears that photocatalytic oxidation is an attractive technique for indoor air cleaning.