The electric cigarette is an alternative to today�s smoked tobacco products, and still remains controversial up to today. An e-cigarette works by giving doses of vaporized tobacco solution using rechargeable batteries. Vapor that an electronic cigarette gives off is actually liquid nicotine vaporized by an atomizer inside. Depending on the brand, there can be an LED light installed at the tip of an e-cigarette. These e-cigarettes are made to look like traditional cigarettes so they aren’t easy to distinguish at a far glance. When a user runs out of nicotine in his e-cigarette, he can simply get some from a packaged bottle. There are those who say that e-cigarettes are pretty much harmless compared to the real ones. Controversy involved with e-cigarettes come from different nations having different opinions; some banned them, others accepted e-cigarettes.