Electronic Cigarettes
An electronic cigarette, also known as an e-cig or e-cigarette, is a device which heats liquid containing nicotine to produce vapor. This vapor is then inhaled by the user and acts as a nicotine-delivery system. E-cig enthusiasts enjoy the act of “smoking” without the smoke, ash, combustion or odor of traditional tobacco cigarettes.
E-Liquids, Vapors & Smoke Juice
Liquid for producing vapor in electronic cigarettes, commonly known as e-juice or e-liquid, is a solution of propylene glycol (PG), vegetable glycerin (VG), and/or polyethylene glycol 400 (PEG400) mixed with concentrated flavors; and optionally, a variable concentration of nicotine.[43]
The solution is often sold in a bottle or in pre-filled disposable cartridges. They are manufactured with various tobacco, fruit, and other flavors, as well as variable nicotine concentrations (including nicotine-free versions). The standard notation “mg/ml” is often used in labeling for denoting nicotine concentration, and is sometimes shortened to a simple “mg”.