In order to understand how these things work, the components contained in these devices have to be described first. Fortunately, there aren`t many and the process is very simple to understand. There is a battery, a mouthpiece (which contains the cartridge) and the atomizer which refers to the heating element.
The first striking thing about electronic cigarettes is that lighters and matches are not necessary in order to start smoking. When people want to start smoking, they simply turn on a little button, which activates the atomizer. This heating element starts heating the liquid solution in the cartridge which leads to the production of vapor. If there isn`t a little button, the process is automatic and sensors are the ones that activate the atomizer. Of course, none of this would be possible is there wasn`t a battery. Although most of them should be replaced from time to time, they are quite powerful and able to last for a long time. Also, they sometime contain additional elements which make it possible for the tip of the cigarette to have a red (or blue, green, etc…) tip that glows.
The cartridge is located in the mouthpiece and it contains a liquid solution that can come in all kinds of flavors. In addition to choosing flavors, people can also choose the amount of nicotine in the cartridge. There are zero nicotine doses (they do not contain nicotine), low, medium and high doses. The solutions in the cartridges contain water and propylene glycol, which is a safe substance which can be found in cosmetic products, toothpaste and even food. Thus, basically the only thing that people inhale is water.
The atomizer, which was already mentioned, is the thing that turns the solution into vapor. Once activated, either automatically or by pushing a little button, it heats the liquid which then turns into vapor. This is not a revolutionary method of producing vapor because this mechanism is used in theaters, nightclubs and anywhere else where there is a need for special effects.
Because of the fact they do not contain any harmful chemicals (propylene glycol in the solutions is on the FDA GRAS list) and because of the simple and safe mechanism which they use, electronic cigarettes are devices that are perfectly safe for both the people who use them and those that are close to someone using them. Because of their clever design, they can offer people a unique and a really amazing experience that they were looking for.