| 摘要 |
<p>This invention is an Anti-fogging Mask which is designed to prevent glasses from fogging due to the moist breath from the mouth and nose of the users of glasses in the winter, by a specially designed system that will closely contact the mask with the nose of the user. This particular mask is effective in preventing the moist breath coming out through the upper part of the mask, and its structure is simple and is cheap to produce.</p> |
