E cigarettes, commonly known as Vapes are systems that heat a liquid to create aerosols that are inhaled by the user. Here are some facts to note about vaping: Vape emissions typically contain E cigarette flavors are toxic to white blood cells, warn scientists Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica E cigarette Characteristics, Safety Issues, & Regulation Britannica