Most vaporizers deliver dry, warm vapor that can irritate the throat and upper tracheo bronchial tree. It must be remembered that at least in terms of Cannabis, heat is the primary culprit leading to damage of the tracheo-bronchial tree whether smoking or vaporizing. Cannabis smoke contains tars and noxious gases known to be harmful not present in accurately extracted vapor; however, THC is a powerful expectorant and will cause the tars consumed to be subsequently coughed up (unlike nicotine which does not have a medicinal expectorant quality). Vaporizers or "vaporization tools" assembled into systems that feature rapid extraction and delivery combined with water or ice cooling and conditioning of the vapor (as with a Sequential Venturi Vaporization Chamber Bowl mated to a Vaporization Heat Wand as the heat source and a Vaporization Water Tool as the delivery vessel) deliver the best of all: clean, concentrated, cool, and moisturized vapor for maximized bio- activity and minimized impact.
The vaporizer is very good product!