The crash helmet has in its helmet shell (1) a cut-out window which is covered by a transparent film (3) as a visor which is held on the helmet shell (1) so as to be displaceable infinitely variably or stepwise in the circumferential direction (A) of the helmet and preferably by means of transporting and cleaning adaptors (5, 6) mounted on the outside of the helmet shell (1) to set clean film sections in front of the window (2). <IMAGE>
