Your not supposed to inhale any smoke from that lightbulb vaporizer as it is carbon monoxide. You are just supposed to inhale the colorless vapor when you swirl the lighter under it. You can't see it but it's there. I clearly stated that in my "Homemade Vaporizer Construction" thread. If you inhaled smoke it's exactly like sucking on a car exhaust pipe which yes can kill you but it is probable you would be rendered unconsious first.