The electric cigarette is sometimes preferred by smokers over normal tobacco products, but is controversial. Electronic cigarettes are operated by batteries that enable the device to vaporize nicotine inside. One of the e-cigarette’s most important parts is the atomizer, which vaporizes a solution of nicotine inside. Sometimes there is an LED component which lights up when a nicotine dose has been administered. The usual look of an electronic cigarette is a simple, traditional cigarette, a perfect imitation. Also available for smokers are nicotine bottles, each with varying concentrations of nicotine mixed into them. They say that the health risks of an e-cigarette is dramatically lower than that of normal cigarettes. However less risky they are when it comes to respiratory health, there are countries that have banned the use of them.