YOOZ Grapefruit, a well-known electronic cigarette brand in China, has launched a genuine transparent cigarette bomb with transparent appearance and cotton core, named Smart series. This behavior also caused an uproar inside and outside the industry.

E-cigarette is an electronic product that imitates cigarettes and has the same appearance, smoke, taste and feeling as cigarettes. It is a product that uses rechargeable lithium polymer battery as power to drive atomizer, and converts nicotine into steam by heating cigarette oil in oil tank for users to smoke.