| 摘要 |
A protective helmet (1), having a shell (2) and a visor (3) which is pivotable over an opening in the shell, comprises a fan (7) for aerating or venting a hollow space (29) between the visor (3) and the wearer's face. The air flowing into and/or out of the hollow space (29) passes over the inner surface of the visor (3). <IMAGE>
|
