Metro Disposable - 1.8% Traditional Disposable Electric Cigarette. The electronic cigarette, also called e-cigarette, is a battery-powered device resembling the cigarette in appearance and is designed to deliver safely to the user the sensation and satisfaction derived from a cigarette by simulating the act of smoking. New to the electronic cigarette world? Give the Metro Disposable a try! This one time use battery comes with a 1.8% Traditional flavor cartridge and gives you about 300 puffs, equivalent to 1-2 packs of cigarettes. The device is fueled by a liquid formulation of nicotine, Propylene Glycol and flavoring which is vaporized into a thin mist or vapor by an atomizer activated by the smoker's act of inhalation. The vapor produced by the e-cigarette is odorless and disappears in a few seconds. It is without tar, ash residue, flame or fire. It does not emit carbon monoxide and other harmful chemicals found in a cigarette smoke. The nicotine contained in a pre-filled cartridge may be in varying levels of high, medium, low and even zero. A pre-filled cartridge is equivalent to 6 or 7 sticks of cigarettes. The blank cartridges do not contain e-liquid, but can be refilled with your choice of e-liquid nicotine flavor and are therefore more economical. Both types of cartridges are refillable or can be disposed of when its contents become depleted. At the same time that the cartridge serves as storage for the e-liquid, it also serves as the mouthpiece of the device. It is through the cartridge that the smoker, also known as a vapor takes a drag and through which the vapor is delivered to the vapor mouth and eventually lungs. The e-liquid comes in a variety of flavors: strawberry, coffee, vanilla, mint. Nicotine concentrations depend on the vapor choice and may be in high, mid, low and even zero dose ranges. Each e-liquid is distinctly formulated. Metro Disposable - 1.8% Traditional from Glow Industries.