Yes, most nicotine absorbed by
vaping is absorbed in your mucosa, the linings of the mouth, nose, and throat. Very little is absorbed in the lungs. So you're getting as much vapor without inhaling, holding it in your mouth you are getting the max.
Bill Clinton was actually doing what most users do, hold it in the mouth nose and throat as long as you can stand it! He thought he was being clever saying that.....!!
Think of vaping being comparable to using a patch, you absorb about the same amount of nic into your bloodstream, don't compare to smoking a cigarette. NOTHING is the same as those!! Nicotine doesn't kill, smoke does.