Local public services are in demand with many people, so there will be a lot of people smoking in these places, so that people who do not use tobacco are passive smoking.Passive smoking is a big risk, affect health. Cigarette smoke comes from toxic smoke burning more completely, because the suction contain many toxins damage than 26 times more frequently than in the high temperature part and by passive smoking is filtered. Many diseases, caused by a substance such as heart, lung function, and reduce respiratory effects the reproductive function of male and female. Therefore, it is necessary to provide public places for smoking prevention.
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