Sales of smart vapes e cigarettes with digital displays are rising in the United States. These devices are attractive to youth as they typically include flavored nicotine and may include features Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis E Cigarettes and Vape Pens Tobacco Prevention Toolkit Stanford Medicine Are vape pens, or e cigarettes, ever the better option? Ohio State Health & Discovery E cigarettes: How they work, risks, and research E Cigarettes: A Cloudy Past With an Even Cloudier Future ALU.edu