A study by researchers at the Boston University School of Public Health in 2010 concluded that electronic cigarettes were safer than real cigarettes and may aid in breaking the habit of smoking. Researchers said that while further studies on electronic cigarettes were needed, “few, if any, chemicals at levels detected in electronic cigarettes raise serious health concerns.” Electronic cigarettes were found to be “much safer” than traditional tobacco ones, and had a level of toxicity similar to existing nicotine replacements.[34][35][36]
According to this report, the level of carcinogens in electronic cigarettes is up to 1,000 times lower than regular cigarettes, and early evidence shows that electronic cigarettes may help people to stop smoking by simulating a tobacco cigarette.[34][35]