Is second hand vapor from electronic cigarettes harmful?

Without going into the debate on this issue in detail, it appears that regular inhalation of secondhand cigarette smoke can be harmful. However, after a couple ... Burstyn extracted over 9,000 observations on e-cig vapor from the literature using a PubMed search, and evaluated the findings. read more

The most famous review of available e-cigarette literature, “Nicotine Without Smoke” from the Royal College of Physicians, disposed of the secondhand vapor issue quickly. “Users of e-cigarettes exhale the vapour, which may therefore be inhaled by others, leading to passive exposure to nicotine. read more

Technically, none of these people were smoking, they were "vaping." That is, they were using electronic cigarettes, which are battery powered nicotine inhalers. Unlike actual cigarettes, these deliver nicotine through a vapor rather than the combustion system of traditional cigarettes. read more

The authors concluded that exposure to e-cigarette pollutants might be a health concern, as fine and ultrafine particles might be deposited in the lung. There is a limited body of published research on the health effects of ‘second hand’ exposure to e-cigarette vapor. read more