Blue, mark 2, niosh/msha, meets ansi/ul 913 standard for intrinsically safe apparatus, anti-fog (inside) anti-scratch (outside)
The portion of a mask, air line; mask, chemical-biological; mask, gas; or other breathing equipment mask that partially or completely encloses the user's face.
NSN 6150-01-362-0816
NSN 6685-01-410-7583
NSN 5895-01-030-4112
NSN 5996-00-467-1429
NSN 7035-00-252-7467
NSN 5996-00-022-3054
NSN 5945-01-612-3587
NSN 5990-00-964-9672
NSN 2925-00-233-5644
NSN 5925-01-264-9602
NSN 5945-00-308-3944
NSN 5910-00-188-7579