Excellent choice for lead abatement, pharmaceutical manufacturing, welding, metal pouring and work involving OSHA substance specific particle exposures in concentrations up to 10 x the OSHA PEL, excluding those containing oil aerosols and asbestos. Features the 3M™ Cool Flow™ Exhalation Valve, comfortable foam faceseal, adjustable straps, and lightweight construction. Respirators are individually packaged.