Antimicrobial effect of F7 polypropylene fibrous filter containing Zinc pyrithione

摘要

The aim of this study was to investigate the antimicrobial efficiency of fibrous filters containing Zinc pyrithione which is known for its effect against microorganisms. A consortium of microorganisms was aerosolized from a solution containing Staphylococcus epidermidis, Serratia marcescens and fungal spores of Penicillium chrysogenum and was collected onto polypropylene fibrous filter media (F7 EN 779-2002). The influence of three parameters on the microbial survival onto filters was examined: the air relative humidity, the presence or absence of Zinc pyrithione (ZPT) as antimicrobial substances and the presence of organic particles. Quantitative analyses were used to determine the survival after 8 days of the bacteria-fungi consortium collected by the filter.