What’s Inside An E-cigarette?
By Leigh Schaller
Rechargeable, and often designed to look like the white part of a normal cigarette.
A small, usually red, light which glows as the smoker takes a drag.
Sensor & Microprocessor
An airflow sensor detects when the smoker is inhaling and activates the microprocessor, which in turn activates the atomiser.
Related: Your E-cigarette Exclusive
Wick Or Metal Sponge
This delivers a small amount of liquid from the ingredients cartridge to the coil.
This consists of a sponge, surrounded by a coil, inside a chamber. When activated, the coil heats up and vaporises the liquid, which is inhaled, delivering a single nicotine hit. The atomiser and ingredients cartridge could be two separate units or a single unit.
The liquid inside consists of a mixture of propylene glycol, nicotine and water. The user has the option of choosing a solution that contains flavouring. A single cartridge contains enough fuel to last for around 200 puffs, depending on the model.
Depending on the model, the mouthpiece can either be part of the cartridge or detachable.