Dust Filters 3M 2091 Pink - 2 PackNIOSH approved for environments containing certain oil and non oil based particles. Use with 3M Respirators 5000 Series or Cartridges 6000 Series with 3M Adapter 502, 3M Face pieces 6000 Series, or 3M Face pieces 7000 Series with bayonet filter holder. 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