| 摘要 |
Apparatus for controlling exhaled breath, particularly for use by surgeons, comprises a face shield 10 supported in a position to cover only a part of the face of a user, adjacent the nose and mouth, whereby the interior of the face shield will, in use, received exhaled breath from the nose and mouth of the user. A gap or aperture is provided for the ingress of ambient air into the interior of the shield, and suction conduits 13, 22 lead from outlets 12 in the shield to a small battery-operated suction pump 14, carried on a belt 15 worn by the user. In use, the suction pump 14 withdraws exhalation from the interior of the shield 10, through the outlets 12 and conduits 13, 22, and expels the exhalation into the ambient atmosphere at a desired location, for example from a downwardly facing exhaust aperture 16 on the suction pump 14. |
