The 6000 Series maintenance-free, reusable respirator from 3M is the basic face piece we recommend when starting to build a complete mask. Like the other 3M filter masks we sell, it requires no extra parts to attach the filters or cartridges directly to the facepiece. They attach with a simple 1/4 turn bayonet style fitting and requires no tools. The cartridges and filters are set low on the facepiece to provide better visibility. Use the Asbestos Mask if you are working on heating ducts or vents, popcorn ceilings, or pipe insulation. The 3M 6000 Lead and Asbestos Mask Combination is our most recommended package for lead and asbestos protection. If your job requires protection against organic vapors, choose the 3M 6001 Organic Vapor Cartridge that is NIOSH-approved for a wide variety of organic vapors, and easily attaches to the 3M 6000 and 7500 Series masks. Looking for a perfect filter for protection against toxic dusts and for mold remediation? Use the 3M 2097 Filters that fit on the 3M 6000 and the 3M 7500 Series Half Masks, and the 6000 Series 3M Full Face Respirator. The lightweight design is comfortable for longer periods of wear, while the adjustable cradle suspension holds the respirator in place for maximum fit and comfort. The center section of the mask is dark grey plastic with a rubbery light grey elastomeric compound to provide the seal against the face. We say that the mask is maintenance-free only in comparison to older styles of masks that were quite expensive and had numerous replacement parts available. The price of the 3M 6000 half mask makes this unnecessary. So you can wash the mask with warm soap and water to keep it fresh and clean, but when the seal starts to break down, just replace the mask. NIOSH/MSHA approved.