Filtering assembly in nasal cavities
A filtering assembly in nasal cavities includes a connector with two rings connected by a link, and two filtering members are securely connected to the two rings. The two filtering members are inserted into the wearer's nasal cavities so as to effectively filter foreign objects from entering to the wearer's lungs.
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A61M A61M A62B A61F
inventional inventional inventional inventional
Yung-Zhem Shin-Hsiang
Chen Cheng