Effects on energy savings and occupant health of an antibacterial filter

The outdoor air pollution and the insufficient hygiene of HVAC systems often result in low indoor air quality. The World Health Organization estimated that 50% of indoor biological contamination comes from the air-handling system; the air filters are sources of pollution due to the accumulation and proliferation of bacteria on the surface. Furthermore, the presence of indoor contaminants can have a negative impact on the health and well-being of the occupants, who spend about 80% of their time indoors. To guarantee a better indoor air quality and a lower health risks, a new concept of biocidal filtration has been introduced. The present paper shows the results of a literature review aimed at exploring how to integrate the health effects on building occupants into the economic benefits of an antibacterial filter. The research focuses on costs and benefits produced by the application of an antibacterial filter, comparing it with a traditional one. Two methods were applied for the assessment; the Cost Benefit Analysis and the Monte Carlo Simulation. The results suggested the goodness of the economic investment on biocidal filter and showed how it allows to achieve benefits in term of energy savings and health for the different analysed case studies