Respirator assigned protection factors - Wikipedia
Disposable FFP2 cupped mask with valve (APF 10) [20 pack]
M.A.S.K. Safety first 🇳🇱 on X: "@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