Traditional tobacco products mainly release chemicals for people to smoke via chemical reaction triggered by burning; while E-cigarettes output nicotine and aromatic substances by means of electronic heating, and are electronic devices that enable smokers to have the same physiological feeling as smoking real cigarettes. They were first invented by Chinese pharmacist Han Li, and have gradually flowed into Europe and America. Although the exact structural design of E-cigarettes is constantly changing, the structure is composed of three parts: typically, a battery, atomizer, and liquid storage tank (cartridge) (as shown in Figure 1) . When people smoke E-cigarettes, the electronic device in the E-cigarette smoke will atomize the e-liquid (the solution used to generate the aerosol) in the cartridge, and then the smoke will enter the body through the mouth. In recent years, many enterprises have entered the field of E-cigarettes. In order to cater to the diverse needs of people, E-cigarettes have been developed with a variety of tastes. The production technology of E-cigarettes has been constantly improved, and its market share continues to expand.