Home / Adult Masks Adult Masks ASTM F2100 Level 1 Adult Earloop Surgical Face Masks – 30s Individually Wrapped $25.00 ASTM F2100 Level 1 Adult Earloop Surgical Face Masks – 30s Individually Wrapped $25.00 ASTM F2100 Level 1 Adult Earloop Surgical Face Masks – 50s in a Box $25.00 ASTM F2100 Level 1 Adult String Tie Surgical Face Mask – 100s in a Box $25.00