NIOSH approved for environments containing certain oil and non-oil based particles. Use with 3M™ Facepieces 6000 Series or 3M™ Facepieces 7000 Series with bayonet filter holders. When properly fitted, use in a variety of applications including welding, brazing, torch cutting, metal pouring, soldering, and exposure to lead, asbestos, cadmium, arsenic, and MDA for concentrations up to 10 times the Permissible Exposure Limit (PEL) wi