VaporCannon Hands Free - 3G
[VWare2]

As far as direct inhale vaporizers go, the VaporCannon is probably one of the best models. It's nowhere near as convenient as a balloon style vaporizer such as the volcano, but you can get good vapor density when used correctly. I figured out (after some frustration) that I had to wait a couple minutes between inhales for the coil to reheat and long slow breaths were best. Now that I have the technique down I'm pretty happy with the vapor cannon -- although it's not the best for group therapy.