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The end of cigarettes is always ignored by people that we never finish it. In fact they are one of the most important reason of fire accidents. We usually throw the end of a cigarette with fire on and thats dangerous.
Cigarout looks nearly the same to the traditional cigarette. But actually there is a special layer of sands between the tobacco layer and the filter which will crush out the fire. It will reduce a lot of fire accidents.
Referring to the materials, the sand is easily to get and it makes no pollution, absolutely green. And it could also filtrate some poisonous matters in the smoke.
Ni Yuwei, Chi Hengfeng, Zhou Hongjie, Shen Hui, Tang Yesheng, Cheng Yao, Ding Xiaoxia