| 摘要 |
PURPOSE: To easily exchange a respiration filter by improving an inhaler mask. CONSTITUTION: A packing ring 7 is continued to an elastic sleeve 8 which surrounds a respiration filter 2 almost completely, and the respiration filter 2 can be inserted into the packing ring 7 or removed from the packing ring, when the sleeve is repelled and fixed on the repelled position. |
