Old South Trading is an authorized 3M reseller.
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> 99 (omit:5)% Bfe (Bacterial Filtration Efficiency) according to Astm F2101
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Highest level of fluid resistance according to Astm F1862 at 160 mm Hg
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Not made from natural rubber latex
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3M proprietary filter media is designed for ease of breathing
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Soft nose foam and smooth inner materials feel comfortable against the skin
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The unique, three-panel design fits a wide range of face shapes and sizes