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          • Term
            • bacterial filtration efficiency (BFE)
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          • Definition(s)
            • Bacterial Filtration Efficiency or BFE is a measurement of a respirator material's resistance to penetration of bacteria. Results are reported as percent efficiency and correlate with the ability of the fabric to resist bacterial penetration. Higher numbers in this test indicate better barrier efficiency. Wrap fabrics were compared based on grade as well as basis weight Wikipedia
          • Example sentence(s)
            • According to the brand, the filters were found to provide “higher than 95% Bacterial Filtration Efficiency,” meaning they successfully stop most particles from getting in or out. A pack of 10 filters costs $20. - People by
            • NSafe mask has 99.2% bacterial filtration efficiency (at 3 microns) and complies with ASTM standards of breathability and splash resistance, IIT-Delhi said in a statement. - Outlook India by
            • While the Closca Mask itself is a non-medical grade mask, it is made from high-grade materials. The filters have been made in Spain following official regulations (EN 14683: 2019 + AC: 2019 type 2). The mask itself has a 98% bacterial filtration efficiency (BFE). - Goosed by
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