Electronic cigarettes; Oral vaporizers for smoking purposes; Electronic cigarettes and oral vaporizers for smokers; Electronic cigarette liquid (e-liquid) comprised of propylene glycol; Flavorings, other than essential oils, for use in electronic cigarettes; Flavorings, other than essential oils, for use in oral vaporizers for smokers; Electronic cigarette liquid (e-liquid) comprised of flavorings in liquid form, other than essential oils, used to refill electronic cigarette cartridges; Cartr...