Quote Originally Posted by shibdib
How long does the BP keep the PD warm if you preheat it at home?
You might get 2 hrs. from a new one. Vapolution advertises 2 hrs. Mine's good for about 90 min. and it's a couple of years old. Haven't used it a lot though.

Quote Originally Posted by the image reaper
that guy is coughing his head off, in the YouTube video ... judging by the smoke he's exhaling, his vape is running too hot ... I think the PD claims about 375F, doesn't it ? ... I used my HerbalAire at 330-335 (verified with infrared thermomoter) , seemed about right, only got vapor, it could never make you cough ...
Not smoke dude. It's vapor. Visible vapor is all about lighting. The unit can't overheat. It's built into the design.

As for coughing, the herbalAire has made my wife cough, so there goes your theory. Not everyone's lungs are the same.