| 摘要 |
PROBLEM TO BE SOLVED: To provide a smoking box difficult to flow out the smoke of a tobacco generated on the inside to the outside even when a smoker goes in and out. SOLUTION: The smoking box has a smoking space being installed in an unsmoking space, in which a smoking is forbidden, such as an indoor section, having a periphery surrounded by a wall section while having the inside held under a negative-pressure state and having the inside in which the smoking is permitted. The smoking box has a communication space mounted between the smoking space and the unsmoking space and used as a path for a going-in-and-out to and from the smoking space. The smoking box has a first shielding means and a second shielding means forming entrances to the communication space while shielding the smoke of the tobacco generated in the smoking space. COPYRIGHT: (C)2007,JPO&INPIT
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