I would be. To me it's obvious that some of these devices would emit heavy metals, and they don't name names, but I'd expect some brands to be better than verus cheap no-name gas station grade vapes. The latter unfortunately is likely most accessible to those who want them.

But at the same time, you can only heat up a lowest-possible-cost element to vaporization temperatures so many times before things break down, or the liquid runs out and the user tries to get a few last pulls from it. I've tasted an empty vape before - it's nasty, it tastes like burnt metal and yet some will use it up until that point.

On the other hand, when the vape is 1) a decent brand 2) hasn't been overused 3) isn't nearly empty, I would expect it to perform signficantly better on harmful vapors tests than combusting a toxic plant and breathing it in.