he original idea for the vaporizer is attributed to a “smokeless non-tobacco cigarette” patent filed by Herbert Gilbert in 1963. The invention was intended as a safe form of smoking that uses heated, moist air or warm medication instead of burning tobacco and paper.
Vaporizers work either through the placing of plant materials or extract onto a heated surface (conducive heating), or when air heated by inhalation or a fan comes into contact with the concentrate (convection heating). These heating processes extract the cannabinoids and terpenes, warming the material just enough to turn it into vapor but not enough to combust. By contrast, smoking combusts the material, producing potentially harmful toxins and carcinogens that the smoker also inhales.