3ply face mask,earloop & tie-on; 9.0cm X 17cm;Low breathing ... /box,2,000pcs/ctn. Surgical Face Masks3-Layer Face Mask,Elastic Ear Loop and Tie-on type;Specifications:9cm X ... elastic ear loops,;Adjustable ties,dual head straps for tight facial seal;4).Colours:blue,green,white;5).50pcs/box, ... ctn.Special 3-layer design respirator produced from high filtrable,fluid resistant with a PFE 98% of 1.0 Micron. ...