Niosh approved 42cfr84. Used against formaldehyde/organic vapors
NSN 5998-01-411-6734
NSN 5855-01-629-4002
NSN 6240-01-457-7978
NSN 5895-01-233-0683
NSN 5895-01-157-4741
NSN 5999-01-472-3618
NSN 7035-00-167-7411
NSN 6145-00-990-9700
NSN 2925-01-091-4734
NSN 6620-01-601-4314
NSN 2925-01-243-0328
NSN 5950-01-459-6562