| 摘要 |
PURPOSE: A nasal cavity purifying filter is provided to prevent the inhalation of polluted air and the infection of various disease causing germs in a dirty environment, and to improve the convenience of wearing thereof. CONSTITUTION: The disposable nasal cavity purifying filter(10) is installed in an elliptical ring support member(1) having a profile conforming to the inner wall of a nasal cavity so as to be installed inside the nasal cavity by using the inner wall of the nasal cavity as a case of the filter. The filter is made of an elastic mat and has a same color with the nasal cavity. In addition, the filter is provided with a pair of strings(2) having a same color with the skin color of the face.
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