Earlier quoted context omitted.
Yeah, I'm highly skeptical it's overall safe. You have all sorts of metals, liquids, plastics, flavoring compounds, wicks, etc. Some people try to select 'healthy' choices (like organic cotton for the wick); maybe that's healthier, maybe it's not. But then you also have tons of cheap devices on the market, made in China, with who knows what as the cheapest metal/fabric, and then literally tons of unregulated flavorin…
> You have all sorts of metals, liquids, flavoring compounds, wicks, etc Metal content is negligible unless you dry hit. No one likes that so it's pretty much a self-limiting problem. Flavoring compounds, though... there are liquids out there that contain diacetyl (a "buttery" flavoring). It's relatively common in foods, but is known specifically to cause issues when heated and inhaled. ETA: I just saw that this is m…
https://www.jhsph.edu/news/news-releases/2017/study-toxic-me...