| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that it is difficult to performing adjustment over the whole range of large aperture change, fine precision change or long-term continuous emission, or the like, in a communication passage for communicating ambient air with content such as fragrance, deodorant, or repellent which are conventional objects stored in a container.SOLUTION: A ventilation amount changing device for a gas passage performs gas divergence of a component of stored content around a container according to adjustment in a range from subtle divergence to intense divergence, regardless of magnitude change of the storage container, using the same main member, and over a short term or over the long term. |
