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p/smoke-signals-filter-fulfillmentPersonalized Air Quality Monitoring & N95 Filter Delivery
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Osim Voumik

ASTM F3502 — CDC-recommended F3502 Masks,Level 2 F3502 mask,ASTM F3502,

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These personalized certified masks with "Level 2" results under ASTM F3502, the new CDC-recommended national standard for reusable consumer masks.

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AKA
F3502 is going to be a major industry for 2021