| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a mask that closely fits the mouth and its surrounding vicinity on its wearer' face, prevents any gap from opening between the mouth and a filter in the mask without fail, and improves the feel of wearing a mask. <P>SOLUTION: The mask comprises a mask body 3 that allows air penetration through and covers the mask wearer's mouth and its vicinity, and a filter 1 inserted within the inner surface of the mask body 3. The filter 1 is made of urethane foam with low repulsion. The low-repulsive urethane foam should preferably contain bamboo charcoal. <P>COPYRIGHT: (C)2007,JPO&INPIT |
