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Mariusz Skwarczyński, Ewelina Skwarczyńska-Kalamon
Politechnika Lubelska

Indoor air quality is an important factor influencing the human health and well-being. It is just as important as the quality of the outdoor air, as people spend most of their lives staying indoors. In order to improve the quality, it is vital to use the right filters that clean the air of chemical, physical and biological pollutants. Filtration efficiency largely depends on the filter material. Currently, polyester fibers, glass, polyurethane and latex are used for the production of filter fabrics. One of the latest solutions are filter materials coated with nanosilver disinfectant. Tests have been carried out in order to determine the microbiological efficiency of the nanosilver filter material (class F5, F7, F9) for the presence of the three most common strains of bacteria in the indoor air (Micrococcus luteus, Bacillus subtilis, Pseudomonas fluorescens). On the basis of results read 24, 72 hours and 7, 14 and 30 days after the drying-out of filters, the effect of the filter material treated with nanosilver on the growth of bacterial cells was established. The results allowed to determine the effectiveness of filters with nanosilver. They inhibit the growth of bacteria, both gram positive and gram negative. They also provide better indoor air quality, restrict the amount of biological pollution by reducing the growth of microorganisms on the surface of the filters. Therefore, the filters with nanosilver have higher filtration efficiency. Moreover, they remain clean for a longer time compared to the air filters that are not covered by the antibacterial compound.

Słowa kluczowe
nanosrebro, filtracja powietrza, filtry powietrza

Analysis of the Microbial Efficiency of the Nanosilver Filter Materials

Key words 
nano silver, air ventilation filter, filtration

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