The evaporation method used in vaping devices is based on the physical principle that liquids can turn into vapour when heated to their boiling point or when exposed to a lower pressure than their boiling point. In vaping devices, the e-liquid is heated to a temperature that converts it into a vapour, which is then inhaled by the user. The evaporation process can be influenced by several factors, including the temperature, pressure, and composition of the e-liquid.