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M.A.S.K. Safety first 🇳🇱 on Twitter: "@TheWHN @Greta_NP @PPEtoheros By OHSA Standard (fig.1) the Assigned Protection Factor APF for the half face respirator is only 10 as for the full face respirator
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Milwaukee N95 Professional Multi-Purpose Valved Respirator with Gasket (3-Pack) 48-73-4002 - The Home Depot
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