1,Material: needle punched ,non woven 2,filter Dust, water 3,all kinds of color SMS dust masktechnies nonwovensupply type Make-to-OrderColor Blue green white pinkType: Hang ear typeplace of origin RiZhao ChinaFunction: It is made of white nonwoven cloth. In order to keep it clean,both edges are sewed up by the advanced hot rolling technology. Active mask can filter the bacteria,dusk and the ...