Authoritative reports show that electronic cigarettes are not harmful to traditional second-hand cigarettes.

Some surveys conducted by public health organizations have begun to show that many people mistakenly believe that e-cigarette is as potentially lethal as traditional tobacco. The reason is intuitive—both electronic cigarettes and flammable tobacco products produce white vapor. Especially non-smokers will instinctively feel that second-hand vapor from electronic cigarettes is harmful. People will worry about whether the vapor from electronic cigarettes will bring the same risk to non-smokers as smoking. So do electronic cigarettes have the harmfulness of secondhand vapor from traditional cigarettes?

American research shows that electronic cigarette vapor is basically harmless.

Early last year, however, a study called "Comparing the Carcinogenicity of Vapor Emitted from Electronic Cigarettes and Tobacco" showed that the toxicity of electronic cigarette vapor was 99% lower than that of traditional cigarettes.

Researchers led by Dr. Dainius Martuzevicius experimented by building a specially designed indoor simulation room and a fully controlled ventilation system. The results showed that electronic cigarette vapor is a tiny liquid, which occurs abnormally fast, and the smoke particles are larger and relatively stable to dilute and disperse. No harmful ingredients were found in the air until the smoke-filled e-smoke stores.

The report of the British Public Health Bureau: E-cigarettes can reduce the risk of disease

This is not the first study to conclude that electronic vapor is safer than traditional cigarette vapor. In fact, the British Public Health Agency published an official report the year before last that electronic cigarettes are 95% less harmful than traditional cigarettes, and it is still available at the Public Health Agency. The National Academy of Sciences also issued a statement last year that people who switch completely from traditional tobacco to electronic cigarettes can significantly reduce the risk of cancer.

National Academy of Sciences report: electronic cigarettes can help quit smoking

Second-hand smoke is a huge safety hazard for those who feel that they will be safe without smoking. Since the advent of electronic cigarette, it has always been questioned. Now more and more evidences prove that the smoke of electronic cigarette is harmless. Not only to help themselves quit smoking, but also to help non-smokers quit smoking.