No, and its not something people should be taking part in, its very dangerous. People think its safe to use, but having it blow up in your face, that's not safe. They are more dangerous to your health than regular cigarettes. We took a class on the use of smoking Vapors and cigarettes. The insides of your body will look really bad, the lungs, heart, kidneys and its not a pretty sight to see. Second hand smoke is just as bad. I either will move away from you or tell you not to smoke near me. Be respectful of others who don't smoke.