| 摘要 |
PROBLEM TO BE SOLVED: To provide a deodorizing filter with a sensing function, capable of changing the color of the filter by malodor gas and returning to the original color when the substances with the malodor are decomposed by a photocatalyst if a photo-reactive semiconductor is used. SOLUTION: In the malodor gas sensor type deodorizing filter, a malodor gas indicator whose color is changed in response to a specific malodor gas is included in a deodorant, a photocatalyst, etc. |
