| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent spectacles from fogging when a mask and spectacles are worn at the same time. <P>SOLUTION: The breath blocker is prepared to block breath for blocking breath leaked from a mask to reach spectacles. Air-tightness is kept by putting rubber between two bent metal sheets and lining urethane on the skin-contact surface. <P>COPYRIGHT: (C)2008,JPO&INPIT |
