I use them sometimes with weed. I don't know how you'd get one on a plane or why you'd subject people around you to it. There are vape stores popping up like crazy here in Portland. I have some that are walking distance. They are pretty nice devises. Back 20 years ago before this tech existed they used to have vaporizers that were the size of a globe. There was a heater unit in the middle bottom and a glass globe on top and you would wait for the weed to vaporize and then suck it out of the globe through a bendy plastic straw sort of like a hookah. Over time the vapor would make honey oil on the glass and you could scrape it off and smoke it and get high as a mountain.