... without any toxic,irritating. 3 special 3-ply Face mask,1 international standard:EN149:2001,FFP1,FFP2, ... and static electricity material to resist normal toxic and tiny micro particle4 Suited to mining,building,grinding drugs ... ,casting,agriculture,farming,ececttonic,food processing,cement textile,disintegration,carving,heavy metal pollution,glass...etc workshops. Face ...