Electronic cigarettes, generally known as e-cigs or vapes, are electronic devices that vaporize a liquid solution without any combustion to produce a flavoured vapour with appearance, sensation and optional flavor of regular tobacco cigarettes. The resulting vapor does not contain any tar, carbon monoxide, cyanide, nor any of the other harmful chemicals normally present in ordinary tobacco cigarettes, hookahs and cigars.
The principle components of an e-cig consist of:
Battery (or “Mod”)
This will determine how much battery capacity the device will have (measured in mAh), how much output wattage the device can provide (higher wattages tend to produce more vapour) and which settings the device can be used on (i.e temperature control for different metals).
On top of the battery the user must have a place to put their liquid. They can use a tank, which they fill up with liquid, or an RDA (Rebuildable Dripping Atomizer) which they drip liquid onto periodically. These components house the coil. Tanks tend to have pre-built coils the user can purchase and install simply by screwing them in, while RDA’s will require the user to build their own coils and install them, resulting in a customizable pull.
Coil (or “Atomizer”)
The coil is housed inside of the tank or RDA. These are measured in ohms (or "Ω") to show the resistance of the coil. Generally, lower resistance coils are to be used at higher wattages and create more vapour. Coils also come in different types of metal. The standard metal for coils is Kanthal, which is only to be used in basic wattage or “power” modes. Metals like Nickel or Titanium are specifically used for temperature control modes, and must be used on a mod that supports this. Stainless Steel is gaining popularity as it is capable of being used on both power modes and temperature control modes.