So I take it, should these results be replicated and validated as scientifically sound, that smoke machines will be banned? Because it's the same kind of aerosol with virtually the same ingredients.
I'm also curious - and maybe I missed it; it's a dense paper - that while they mentioned the primary ingredients in "bare" vape liquids, they didn't seem to mention the concentrations of each used in the study? Again, maybe I missed it...
If it wasn't mentioned, I would be curious how different percentages of each affect the outcome.
For that matter - I would also be curious how "vaping" something similar - say perhaps atomized distilled water in a nebulizer - what kind of results are seen there, too.
While it may be that vaping liquids are "bad" (and any metals from the heating coil, as the study noted), how they compare to other similar liquids might be important in determining their relative danger.
Also - whether this reported danger is warranted or not? That is, when compared to other things in day-to-day breathing, where does this fall in terms of "danger"? Is it worse than being around a camp fire or fireplace? Is it worse than breathing air in a working kitchen? Is it worse than breathing the air while taking a hot shower?
Sure - the numbers can be made to look scary - but what is the objective truth, beyond the idea that "yes, vaping even base liquids is worse than just breathing" - I think we can agree that breathing in something more than clean air is worse for you, no matter what it is. But for all we know, we're constantly breathing in microparticles of plastic and other pollution in greater rates and more often than even a heavy vaping device user.
Lots of questions and avenues that could be pursued in follow-up research on this topic, certainly. It was interesting to read about, especially as someone who occasionally vapes a caffeine-based (non-niccotine) liquid.