ASTM Level 3 Earloop Mask, Blue, 50/bx, 10 bx/ctn (GCFCXUSF)

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.