History of tobacco minimum purchase age by U.S. jurisdiction Wikipedia New Pa. law raising smoking, vaping age to 21 to take effect in July 2020 FHS Press Most E cigarette Users Ages 18 to 29 Never Smoked Before American Cancer Society Analysis suggests e cigarette use may be linked to lower rates of smoking E cigarette laws just a smokescreen? Teens easily work around bans by buying e cigarettes online National Poll on Children's Health The 101 on e Cigarettes Infographic American Heart Association