Bielcor N99 Face Mask Respirator With Valve (12 Pack)

Breathe easier indoors and outdoors with a National Institute for Occupational Safety and Health (NIOSH) approved mask. Bielcor N99 Face Masks help block out ultra-fine particles as small as 0.3 microns while still allowing you full, deep breaths of clean, fresh air. Filters 99% of particulates Heavy-duty head bands Latex free Conforms to CFR part 84, N99 class NIOSH approved, TC-84A-3907