An electronic cigarette contains a battery, an atomizer and a cartridge. This all comes in a compact tube shape which looks and handles like a normal cigarette. A few drops of e liquid are placed into the cartridge which burns. You can buy e liquids in different flavours, but all e liquids mainly contain water, nicotine and propylene glycol.
This means that when the smoker uses the inhaler, which they inhale much like a normal cigarette, they are met with a hit of nicotine.
Because there are different strengths of e liquid, you can choose how much of a nicotine hit you would like. This is ideal for lighter smokers who would find the standard strength too strong. You can also buy e liquids which don’t contain any nicotine at all; this is for people who only want the taste of the flavour in the e liquid rather than anything related to nicotine. It is also useful for people who want to cut down their nicotine intake completely, as they can gradually wean themselves off of nicotine by adjusting strengths lower and lower.
When inhaled, the smoker will receive the flavor of the e liquid and a feeling of a real smoke, but will not be breathing in the many different toxins that normal cigarettes contain. This means it is safer to smoke around others, too. The vapour emitted from the electronic cigarette is harmless and odourless.