Before the introduction of a Vapir, persons who use drugs such as marijuana or Cannabis normally practiced various drug delivery procedures like the ingestion and burning smoking. When compared with vaporization, these methods of drug delivery generally didn’t offer a faster pharmacological effect in the user. As the method of vaporization delivered the vapor form active substance directly into the bloodstream through the lungs, the intended level of effect is received more quickly. The use of vaporizers even provides them a more accurate level titration while inhaling. Hence the desired level of pharmacological effect is reached in the case of vaporizers without exceeding the appropriate and consistent level of dosage. There are also many forms of precise vaporizers available today containing an electric heating metal substance or element mostly with a temperature control feature. Such high-end vaporizers are normally priced at high rates. Vaporizers are even classified based on the way they heat the heating element. The classifications are by convection, thermal conduction and thermal radiation. Under the class of conduction heating, a metal plate is used to place the substance to heat and deliver the active substances contained. In the case of a convection heating, there is no contact between the heating element and the substance.