We meet both EN14683:2019 Type II and CNS14774:2018 Medical Face Mask Standard. For the test item BFE, EN14683:2019 Type II has the same requirement as ASTM-F2100 Level II and Level III. Below link is the article from Nelson Lab about the harmonization between EN14683 and ASTM-F2100. You can learn more about those mask test standards. https://www.nelsonlabs.com/en14683-harmonizes-bacterial-filtration-efficiency-and-differential-pressure-with-astm-f2100/