There are some questions here about filtering effectiveness of surgical masks. Here is one study showing 96% filtration of aerosolized bacteria although unfortu

There are some questions here about filtering effectiveness of surgical masks. Here is one study showing 96% filtration of aerosolized bacteria although unfortunately it does not compare against an n95. Figure: https://www.researchgate.net/figure/Filtration-Efficiency-and-Pressure-Drop-Across-Materials-Tested-with-Aerosols-of-Bacillus_tbl1_258525804 https://www.researchgate.net/figure/Filtration-Efficiency-an... Full study: https://www.cambridge.org/core/services/aop-cambridge-core/content/view/0921A05A69A9419C862FA2F35F819D55/S1935789313000438a.pdf/testing_the_efficacy_of_homemade_masks_would_they_protect_in_an https://www.cambridge.org/core/services/aop-cambridge-core/c...