| 摘要 |
<p>The facial mask which encloses the mouth and nose of the wearer (P) comprises a rigid shell held by fasteners on the wearer's face, an air inlet pipe and a flexible lip (2) for positioning the mask on the user's face. A thin elastic hygienic protection film (3) insulates the wearer's skin (1) from the lip. The film comprises a zone (1) placed outside the lip and having a structural part (5) ensuring sealing between the lip and the film. It has a zone (2) placed over all the outer part of the lip and a zone (3) which, under the effect of air pressure (PA) inside the mask is plated against the wearer's skin</p> |
