Respirator/Surgical Masks meet NIOSH and CDC guidelines. Respirators are designed to reduce water exposure to airborne disease and meet CDC guidelines for tuberculosis exposure control. Filter efficiency of 95% or greater against particulate aerosols free of oil (Type N95 Respirator). Surgical masks are designed to provide physical barrier to fluids and particulate materials with High Fluid Penetration Resistance (ASTM F1862-05 / 160mmhg). Particulate Filtration Efficiency (PFE) of greater than 99%. Bacterial Filtration Efficiency (BFE) of 99.9%.