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These days, many people are sensitive to smoking and second-hand smoke and try to quit smoking for their health. But it's hard not to smoke and much smoking damages health. It also harms people around me by second-hand smoke. With this watch on when you smoke, holes in the left side of your watch detect cigarette smoke. Interlink with smartphone every hour and identify smoking habit that you did not know It helps to be alert and self-regulatory. Non-smokers will also be able to recognize and prevent the amount of second-hand smoke they didn't know about.
Gwangju, South Korea