3M 1860S N95 NIOSH Small Particulate Respirators, 2 Boxes of 20 Masks Provides over 99 percent Bacterial Filtration Efficiency against wearer-generated microorganisms Filter efficiency of 95 percent or more against oil free particulate aerosols Features include an adjustable noseclip, braided headbands and soft nose foam Soft inner shell for greater comfort against the face NIOSH N95 approved, FDA cleared, and meets CDC guidelines for Mycobacterium tuberculosis control
