most sprinklers are set off by heat, not smoke, vapor has no heat... or very little. smoke detectors pick up the particles in the air caused by the smoke, vapor has none of these particles. if it is a standard office building with high ceilings and fire sprinklers/ smoke detectors on or near said ceilings , there is no way you could possibly vape enough out of one PV to set it off as chances are, the vapor will dissipate well before it gets over your cubical wall.
If they were that sensitive, every time it rained, or every time it was foggy out, when there are massive amounts of humidity in the air, the fire alarms and sprinklers would go off...
if youre still worried, just exhale in your shirt, thats how i do it in class
