No worries

Also, fentanyl can most certainly be deadly when airborne. You’d have to walk into a fresh cloud of it, but it’s possible if a large bag of it ripped open, something like that. Something that you’re unlikely to encounter, obviously.

The reports regarding first responders have largely (like 99%) been hysteria manifesting itself as physical symptoms (fainting, dizziness, etc) but there have been a few cases of FRs being legitimately exposed.