Specification: material : 100%polypropylene nonwoven techics: Melt-blown widths : 200mm treatment : electrosyatic GSM range : 25 color : normally white grammage range : by customer feature : breathable ,Eco-Friendly , Anti-bacteria , Anti-static use : hygiene ,industry , hospital paking : wrapped with PE film filter grade : BFE 95 ; BFE 99