The convex shape, double strap design, nose foam and nose clip ensure comfortable use for faces of all sizes.FFP2 - Reliable and effective protection against fine particulatesDurable, deformation - resistant inner shell.3M™ Cool Flow™ Valve Cool Flow valve decreases heat buildup to provide workers with comfortable protection, even in hot or humid environmentsCompatible with: 3M eye protection. 3M hearing protectionThe braided bands are color - coded for quick and easy identification: yellow for FFP1, blue for FFP2 and red for FFP3.They are designed to perfectly match 3M eye and hearing protection products. 3M™ Particulate Respirator 8000 Series is our range of cup - shaped respirators with a lightweight two - strap design. They provide FFP1, FFP2 and FFP3 respiratory protection, with a convex shape, nose foam and adjustable nose clip to help achieve a comfortable fit on a wide range of face sizes.