You mean that the halogen bulb itself is not in the vapor path, but is behind more glass? This would eliminate the one risk I see with halogen. Maybe far fetched, but what if a bulb explodes at the moment where I take a deep inhale? I don't want lamp stuff in my lungs. On the other hand, do those bulbs ever explode? Anyway, it would be a small extra safety step, at the expense of heat up speed. Correct?