Vaping is not safe and is harmful to health, WHO says, both for users and bystanders South China Morning Post What's in vape smoke Ads of the World Part of The Clio Network E Cigarettes, Vaping Linked to Increased Risk of Tooth Decay, Cavities Sharp rise in vaping among young adults who never regularly smoked BBC News Secondhand smoke from vaping could be harmful to children: study ABC13 Houston Juul study shows secondhand vaping emissions are less toxic than cigarette smoke