A vaporizer is a device that heats up dried herbs to a temperature at which they release their active components into an aromatic vapor. In this process the herb is not scorched, burned or combusted, and thus no smoke is generated.
Although vapor may appear to resemble smoke, it doesn't contain any of the toxic particles (tar, benzene, toluene, naftalene etc.) which make smoking such a health hazard. Toxic gasses, radioactive particles and numerous free radicals are all absent or significantly reduced, depending on the quality of the vaporizer.
To learn more about the health benefits of vaporizing versus smoking, visit www.vaporizer-info.com, which summarizes all scientific studies to date.