| 摘要 |
PURPOSE: To prevent sunburn, pollen and dust without fogging spectacles in spite of wearing of spectacles and without feeling uncomfortabeness in spite of long-term use. CONSTITUTION: Dry process acrylic blanks are used for the inner side. The lower part of the nose and the mouth part are bored with many small holes and the mask is fastened at the back of the neck by means of hook-and-loop fastener tapes 1. A filter pad 4 for preventing pollen and dust is fixed to the mouth part on the inner side of the mask by means of double coated adhesive tapes 5. |
