Cartridges sold filled with chemical flavorings in liquid form for electronic cigarettes; Cigarettes containing tobacco substitutes, not for medical purposes; 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 liquid (e-liquid) comprised of vegetable glycerin;...