Electronic cigarette atomizers sold empty; electronic cigarette liquid (e-liquid) comprised of flavorings in liquid form, other than essential oils, used to refill electronic cigarette cartridges; electronic cigarette liquid (e-liquid) comprised of propylene glycol; electronic cigarette refill cartridges sold empty; electronic cigarettes; oral vaporizers for smokers; cartomizers, namely, combination electronic cigarette refill cartridges sold empty and atomizers, sold as a component of electr...