3M 7000002057 is a half facepiece reusable respirator designed for the 6000 series compatible respirators. It does not come with any accessories, spare parts, or maintenance-free features. Additionally, it is not compatible with 3M PAPR or Supplied Air Systems. This product does not include a clip-on welding shield, enhanced comfort, cool flow exhalation valve, eye protection, or speaking diaphragm. It also does not have enhanced durability, silicone faceseal, six-point head harness, or a drop-down feature. The spare part type for this respirator is an exhalation valve.