| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel nose filter capable of eliminating the inconvenience of a currently used ear-hanging mask and a production method thereof. SOLUTION: This nose filter has a shape to allow the mounting of the filter within the nostrils of the human body and consists of a layer 4 which allows the passage of air. This layer 4 consists of a coarse layer 4A which allows the passage of pollen, dust, etc., and a dense layer 4B which prohibits the passage of the pollen, dust, etc. A medicinal liquid for protecting the internal mucous membranes in the nostrils is injected into the coarse layer 4A. |
