Real cigarettes work differently from electronic cigarettes. They have a mechanical process rather than an organic one. In real cigarettes, tobacco rolled in paper is burned, slowly consuming the cigarette with repeated inhalation. The burned components and ingredients are then inhaled through the length of the cigarette until it reaches the lungs.
In contrast, an e-cigarette is not lighted with fire, nor is it consumed by it. Instead, it is an electronic device which vaporizes a solution of liquid mixed with certain ingredients, which the smoker then inhales.
The body of electronic cigarettes is essentially composed of a metal tubing. There are three components inside this metal tube: the cartridge which contains the liquid, the atomizer which serves to vaporize the e-liquid, and the battery.
Air fills the metal tube when the smoker starts to inhale the electronic cigarette. This prompts the cartridge to release some of the liquid solution it contains, called an e-liquid. Cartridges can be disposable, in which case they are already pre-filled with e-liquid solution, or they can be refillable, in which case the user has the option of concocting his own mixture of nicotine and flavoring concentration and composition.
The e-liquid contains a liquid base of propylene glycol, vegetable glycerin, polyethylene glycol or similar material. They are hygroscopic components which are easily dissolved into vapor when heated. Pharmaceutical formulations also utilize these liquid bases, and they also act as food additives. Propylene glycol is particularly used in asthma inhalers and nebulizers due to its property of being able to retain water. For atomized medications, it is the most preferred compound. These liquid bases are on the FDA’s list of substances Generally Recognized as Safe. Nicotine and flavorings are dissolved into the liquid base, which are all turned into vapor along with it. It is as vapor that the user intakes these substances into his lungs with the help of the e-cigarette .
Gradually, the cartridge releases this liquid. Manufacturers have measured e-liquids and cartridges in terms of the number of puffs they can generate before they are used up.
Once the liquid is released by the cartridge, this is heated by the atomizer, which is powered by the electronic cigarette’s battery. Once heated, the liquid is turned into vapor, and this vapor traverses the metal tube until it is inhaled into the user’s throat and lungs. After being inhaled, the vapor is then exhaled out of the lungs, similar to the way in which a real cigarette is taken in and exhaled out. The significant difference, however, is that there is no secondhand smoke produced by the electronic cigarettes , because no actual smoke is produced in the first place. There is only vapor, which very quickly dissipates once it goes into the air.
Therefore, an electric cigarette “smoker” is not actually smoking. He is simply breathing in vaporized liquid.
The electronic cigarette’s battery need to be periodically recharged much like a cellular phone battery. Cartridges must be replaced and refilled when used up.
A novel feature of electronic cigarettes is the lighted tip, which brightens up during inhalation much like a real cigarette does when inhaled. This however, serves no other function except as an aesthetic feature.
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