20.500.12556/DiRROS-19388 Assessment of different experimental setups to determineviral filtration efficiency of face masks Abstract As a result of the COVID-19 pandemic, many new materials and masks came onto the market. To determine their suitability, several standards specify which properties to test, including bacterial filtration efficiency (BFE), while none describe how to determine viral filtration efficiency (VFE), a property that is particularly important in times of pandemic. Therefore, we focused our research on evaluating the suitability and efficiency of different systems for determining VFE. Here, we evaluated the VFE of 6 mask types (e.g., a surgical mask, a respirator, material for mask production, and cloth masks) with different filtration efficiencies in four experimental setups and compared the results with BFE results. The study included 17 BFE and 22 VFE experiments with 73 and 81 mask samples tested, respectively. We have shown that the masks tested had high VFE (>99% for surgical masks and respirators, ≥98% for material, and 87–97% for cloth masks) and that all experimental setups provided highly reproducible and reliable VFE results (coefficient of variation < 6%). Therefore, the VFE tests described in this study can be integrated into existing standards for mask testing. face masks virus filtration efficiency bacterial filtration efficiency EN 14683:2019+AC:2019 air sampler učinkovitost filtracije bakterij učinkovitost filtracije virusov maske true false true Angleški jezik Slovenski jezik Neznano 2024-07-17 03:56:21 2024-07-17 13:29:18 2024-07-18 03:54:00 0000-00-00 00:00:00 2022 0 0 Nasl. z nasl. zaslona; Opis vira z dne 28. 11. 2022; Soavtorji: Katja Fric, Maja Ravnikar, Polona Kogovšek; Članek. št. 15353; str. [1]-13 iss. 22 Vol. 19 Nov. 2022 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2022-11-21 614 1660-4601 10.3390/ijerph192215353 131313155 https://doi.org/10.3390/ijerph192215353 1 00999e19-43cf-11ef-b487-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=26752 RAZ_Filipic_Arijana_2022.pdf RAZ_Filipic_Arijana_2022.pdf 1 F22665FF543038E2E30ED52CFE0A24B0 51b9768b6dd3459703dec9ac1e694a2c22d8855fa971f0def58156a6959b27d2 1b9e6881-441f-11ef-b487-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=26845 Nacionalni inštitut za biologijo 0 0 0