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Ashtray and cigarette box always use together, But we can always see smokers on the street ,some of who always throw
cigarette about, which is harmful to environment and the others. ASHTRAY IN BOX design a ashtray in the bottom of the
cigarette box,so we can put cigarette butt in the ashtray, makes the streets and environment better.
In some countries,smoke on the street is legal,but there is no ashtray on the street,so the number of cigarette butt on the
street is not small.and what`s more,some beggers and the poor will smoke these butt including children and old man.
Zhejiang Sci-Tech University
Zhang/Cheng Guihua/Zhao Weiran/Li Ling`en/Wang