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For a smoker , bring an ashtray when they go out is very superfluous.
Readily throw cigarette butts will cause environmental pollution.
This Cigarette package can collect the cigarette butts with only one box.
Don’t need to bring other ashtray or Cigarette box.
Ming Chuan University
Taoyuan, Taiwan
Yi-Ting Huang,
Ming Chuan University
Ching-Ying Lin,
Ming Chuan University
Chien-Ju Li,
Ming Chuan University
Ting-Yu Li,
Ming Chuan University