High Quality Content by WIKIPEDIA articles! A vaporizer (or vapouriser) is a device, or in some cases a modular "system" of assembled "vaporization tools," used to extract and deliver via inhalation the active ingredients of plant material, commonly cannabis, tobacco, or any of many other herbs or blends (phyto-inhalation, see also: aromatherapy). Vaporization is an alternative to smoking. Rather than burning the herb, which produces irritating, toxic, and carcinogenic by-products, a vaporizer heats the material in a partial vacuum so that the active compounds contained in the plant boil off into a vapor. No combustion occurs, so no smoke or taste of smoke is evident.