Even IF it genuinely was a fentanyl vape (does that even exist?) you wouldn’t be exposed unless you took a hit from it. And I would have to assume that a fentanyl vape (which again, I don’t think exists) would work at rates that make at least some level of sense for fentanyl consumption, because no one is going to make a vape that just kills you, because people don’t like dying and sellers don’t like killing their customers.

Cops stop pretending fentanyl is a mysterious poison that’s everywhere challenge [Impossible]