Why are e-cigarettes an alternative to traditional cigarettes?

The development of electronic cigarette communication and technological innovation have been deeply influenced by European and American smokers. In China, we can understand its market demand by developing e-commerce and physical stores.
The main components of e-cigarette oil are water, edible cigarettes, propylene glycol, and glycerin. These ingredients are harmless or harmless to the human body. When the e-cigarette is working, the e-cigarette liquid is instantly atomized at high temperature. The smoke we inhale is actually water vapor produced by the evaporation of e-cigarettes. Does not contain harmful substances and tar, reducing second-hand smoke pollution. The main reason for ordinary cigarettes is that tobacco contains harmful substances such as tar and heavy metals, as well as other harmful substances such as carbon monoxide and carbon particles when smoking.
Since the U.S. court ruled that the U.S. FDA banned the sale of e-cigarettes since the second half of 2012, the U.S. e-cigarette market has opened, and the sales of e-cigarettes have shown a rapid growth trend. In January 2016, the UK Medicines and Healthcare products Regulatory Agency approved the release of the e-cigarette company British American Tobacco Product Certification, enabling the product to be marketed as an adjunct to smoking cessation in the market. From a health or economic point of view, e-cigarettes are a good alternative to traditional cigarettes.