Yep. One of the reason school administrators are particularly concerned with Juuls is that they produce so little vapor that students can inhale and hold for a

Yep. One of the reason school administrators are particularly concerned with Juuls is that they produce so little vapor that students can inhale and hold for a few seconds, and by the time they exhale no visible vapor emerges. Kids are even doing it during classes. Speaks to the 'lack-of-unnecessary-chemicals' but unfortunate unintended consequence.