2022-01-19
Most e-cigarettes consist of four different components, including:
a cartridge or reservoir or pod, which holds a liquid solution (e-liquid or e-juice) containing varying amounts of nicotine, flavorings, and other chemicals
a heating element (atomizer)
a power source (usually a battery)
a mouthpiece that the person uses to inhale
In many e-cigarettes, puffing activates the battery-powered heating device, which vaporizes the liquid in the cartridge. The person then inhales the resulting aerosol or vapor (called vaping).