For FFP2 respirators to work effectively, they must be put on and used in accordance with the enclosed user instructions. When putting FFP2 masks on, it is important, among other things, that the straps are in the correct position and that the respirator fits securely against the face. All FlameBrother FFP2 masks have been designed so that the application is simple and largely self-explanatory. The flexible 3D design automatically adapts to the shape of the face, so a metal nose clip is not necessary.