One of the most dangerous things about vaping is its production. Because E-liquids are often made with flammable solvents, the Bureau of Alcohol, Tobacco, and Firearms has issued a vaping-related warning about the risks of hash-oil explosions. In 2015, there were thirty vape-related explosions in Colorado alone – instances of people attempting to create hash oil in their own homes.
Still, a survey funded by Britain’s The Guardian claims that vaping is one of the healthiest ways to ingest marijuana. It certainly seems probable that vaping eliminates some of the side effects of smoke inhalation, like bronchitis and emphysema. But the vaping industry remains highly unregulated, which means that you’ll never really know whether chemicals have been added without appropriate labeling.