The use of electronic cigarettes has increased all over the world, and the majority of electronic cigarette users are former or current smokers, and. And literature has shown that the use of electronic cigarettes may be associated with smoking cessation or reduction. Electronic smoking is becoming more and more popular among teenagers who have never smoked regular cigarettes before. Product characteristics such as flavors affect a person's attitude towards electronic cigarettes. ,Moreover, the availability of many flavors of e-liquids, most of which are sweet, is a reason for them to vapingvape. To further our understanding of the differences in the attractiveness of e-cigarettes between groups of users, this study investigates the attractiveness of flavors between non-smoking users and double smokers, and determines flavor preferences.