| 摘要 |
A head protection system providing several types of head protection comprised of at least three cavities called C1, C2, C3, defining three volumes V1, V2, V3 wherein: C1 is a cavity defined by a mask M for including the mouth and the nose of the wearer. C2 is a cavity defined by the front face of the head component for including at least the eyes of the wearer. C3 is a cavity defined by the rest of the head protection system and for including a large part of the hair of the wearer. Three seals J1, J, J3 insulate the three cavities C1, C2 and C3. These three seals are continuous and close up on themselves. The seal J1 insulates the cavity C1 from the cavity C2, the seal J2 insulates the cavity C2 from the cavity C3, the seal J3 insulates the cavity C3 from the ambient atmosphere.
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