(Ournon-wovenfacemaskhavebeengottentheNELSONcertificationandBFEhasreached99.1%.Thisrateismuchhigherthannormalstandardor98%.) *Standardthickness:outercoveris25gsmpolypropylenespunbondnon-woven,innercoveris25gsmpolypropylenespunbondnon-woven,middlefiltermediumis20gsmmelt-blownfabricfilter.(25gPP+20gmelt-blownPP+25gPP). * Logo: Customized * Eigenschaften: 1) Weich, leicht, bequem, geruchlos. 2) Nicht-irritatingtoskin. 3) Permitsairpassageandbreathable 4) Non-wovenmaterials 5) Tie-onandearloop 6) Manycolorchoices. 7) Fiberglassfreeearloop 8) Latexfreeelasticbands 9) Highfiltrationandeasytobreath 10) Nosebaradaptable, wasserdicht Formedicalfactory, electronicfactoryandfoodhygieneprofessionuse.Inclinicaloffices, housework,gardeningandmaintenanceforfilteringdust,pollenandbacteria.Inlaboratoriesandfactoriesforblockingliquidmists,harmfulairbornechemicalsandfineparticles.