P100 Particulate Cartridge, Half Facepiece, Oil/Non-Oil ParticlesRecommended for substance specific particle exposures up to 10x OSHA PEL for lead, cadmium, arsenic, and others3M Cool Flow Exhalation Valve is a one-way valve offering easy exhalation for cool, dry comfortFaceseal is comfortable to wear and contours easily to help provide a good