Electronic cigarette resembling a tobacco cigarette.

Anelectronic cigarette, also known as ane-cigarette,personal vaporizerorPV, is anelectronicinhaler that vaporizes a liquid solution into anaerosolmist, simulating the act oftobacco smoking. Electronic cigarettes are no longer marketed assmoking cessationaids or tobacco replacement in most countries. There may be similarities between conventional and some electronic cigarettes in the physical design and thenicotinerelease, which may approximate the same amount of nicotine as a conventional cigarette. There are many electronic cigarettes which do not resemble conventional cigarettes at all. The amount of nicotine contained can be chosen by the user, with some choosing no nicotine at all. The benefits and risks of electronic cigarette use are uncertain among health organizations and researchers. Limitedcontrolled studiesare available due to its recent invention. Laws vary widely concerning the use and sale of electronic cigarettes and accompanying liquid solutions, with pendinglegislationand ongoing debate.