How does an electronic cigarette work?
The e-cigarette creates a vapor containing nicotine that you
inhale similar to the smoke created from a real cigarette.
An e-cigarette is a battery-operated vaporizer, which contains a
small heater. When air is drawn through the e-cig by the user, the
battery energizes the heater, which vaporizes the liquid in the
cartridge, and is drawn into the user's mouth/lungs.
e-cigs come in disposable and rechargeable types. Rechargeables
are very cost effective, as compared to tobacco.