... 160cm-width -NELSON lab ,NOISH ,TSI-8130 tester Meltblown nonwoven air filterwe have approval of NELSON LAB and NOISH .CommodityMelt Blown ... ,anti-pull,anti-bacteria, high tensile strength ,chemical resistant breathable,air permeable,absorb oil & alcohol non-toxic,non-musty,anti-static ... EN149:2001,AS1716InspectionAmerican TSI-8130 Automated Filter Testers meltblown nonwoven air filter