ASTM LEVEL 3 EARLOOP MASK, BLUE, 50/BX, 10 BX/CTN, SOLD AS CARTON CROSSTEX 10000178Astm Level 3 Earloop Mask, Blue, 50 Bx, 10 Bx Ctn, Sold As Carton Crosstex 10000178 Crosstex Securefit Ultra Sensitive Earloop Mask Crosstex Securefit Ultra Sensitive Earloop Mask Astm Level 3 Performance Mask With An Extra Soft Hypoallergenic Inner Cellulose Layer That Will Not Tear, Lint Or Shred. Free Of Chemicals And Dyes. Conforms To Any Size Or Shape Face With A 3" Aluminum Chin Piece That Secures The Mask To The Face. Astm Level 3 Earloop Mask,