3M's Medium 6502 Rugged Comfort Half-Facepiece Reusable Respirator w/ Head Harness & Adjustable Straps uses 3M bayonet-style connections for compatible filters and cartridges, allowing the facepiece to be configured for certain particulate, gas, and vapor hazards according to the selected approved components. Compatibility with 3M 2000, 5000, and 7000 Series filters and 6000 Series cartridges gives tradesmen and industrial users flexibility across applications such as grinding, sanding, welding, demolition, maintenance, and general manufacturing. Proper selection, fit testing, and use of approved components remain essential for the intended respiratory protection.