... nonwoven air filter -PP meltblown -99.97% filtration -10-60gsm 160cm-width -NELSON lab ,NOISH ,TSI-8130 tester Meltblown nonwoven air ... ,anti-bacteria, high tensile strength ,chemical resistant breathable,air permeable,absorb oil & alcohol non-toxic,non-musty, ... machine,shopping bag 5,warmth retension, noise isolation 6,superior absorbency,industrial micro-dust maskSpecificationBFE95,BFE98,BFE99 for ...