E-cigarettes or electronic cigarettes are devices which substitute the conventional cigarettes. For the people who are absolutely addicted to smoking, this is healthier way rather than puffing tobacco and generating second hand smoke which might be detrimental to the health of other people as well. This is an excellent device for overcoming addictions. The device produces vaporized nicotine that can be inhaled by the user. The sensors present on the device can detect the air flow from the mouthpiece when user tries to smoke. The flavor of e-cigarette is almost same as the inhaled tobacco.

e- Cigarettes are gaining popularity for a lot of reason: they are non-polluting, non- carcinogenic and do not need a lighter as well! The reviews of electronic cigarettes suggest that the smoke odor does not linger on and the person can even smoke in public. E-Cigarettes have come a long way since their earlier versions. With the nicotine, the user can get almost the same satisfaction as that of tobacco. There is also no virtual residue such as smoke or odor, which does not turn surrounding people into passive smokers. The e-cigarette is beneficial for the people who are looking forward to quit the habit. The product is almost harmless. The  most common problems like yellow fingers and discoloration of teeth can also be prevented by this type of cigarette.

However, e-cigarette has some disadvantages as well. The user does not come to know how much nicotine he has inhaled which can be quite dangerous. This is probably because once the user starts, he stops when the cigarette is completely exhausted. E-cigarettes are charged with battery. Once charged, they can work for several hours; hence it is important for the user to keep the track of smoking by himself. Too much of inhaling can cause side effects due to excessive nicotine in the body.

E-cigarettes have also not been legalized in all the countries. There is also a legal age which is required to start using these devices. Smokers can enjoy this cigarette in public and social areas like restaurants and pubs. Though it comes with nicotine side effects, the e-cigarette prevents many potential harmful effects of conventional cigarettes.