| 摘要 |
A sterilizing facemask with a multi-layer filter discloses a first sterilizing layer and a second sterilizing layer. The first sterilizing layer provides inhaled aseptic air such as using ultraviolet light or visible light in external light hydroxyl free radicals to sterilize. The second sterilizing layer provides exhaled aseptic air from human such as using inactivated the enzyme of bacteria's sulfhydryl group to sterilize. In addition, in accordance with types of germs carried by users, the material of the second sterilizing layer can be further modified to ensure that the exhaled air is sterilized.
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