An E-cig, as some will call it, has three primary parts. Those parts consist of the atomizer, cartridge and the battery. The electronic cigarette uses heat to vaporize a propylene glycol based liquid solution to form a mist. The mist can then be blown out of the mouth exactly like smoke from a cigarette. The heating is the exact same process that would be used in a humidifier. The heater that heats the liquid is called an Atomizer. E-cigarette atomizers will eventually start to wear out due to sediment buildup. Your device will not be able to function properly until that unit, the Atomizer, is replaced.
The cartridge also works as the mouth piece. The cartridge is a small plastic container with openings on each end. Inside there is a sponge that holds the liquid solution that is vaporized. You will always be replacing these because once the solution runs out you will need to insert another in order for your electronic cigarette to work. The cartridges do not have to be used, and the liquid can be poured directly into the atomizer. This technique is called "dripping" and requires a special mouthpiece to make the process easier.
The liquid that is used in the cartridges contains the nicotine that will be ingested. The liquid is often called E-Juice and comes in a variety of flavors. The normal cigarette types, tobacco and menthol, are available and specialty flavors are also possible to use. Some of these flavors include chocolate, vanilla and various fruit flavors. You will even find some flavors that are similar to already popular brand cigarettes. It is also important to know that each liquid has a specific and designated concentration of nicotine. They range from 6 mg to 36 mg. gradually lowering the amount of nicotine over time can eliminate the need to use an electronic cigarette.
All of the batteries in ecigarettes are rechargeable lithium batteries. The battery is usually the largest part of the electronic cigarette. There is an airflow sensor within this battery that triggers the batter to turn on when it’s in use. This was designed by manufacturers to prevent the battery from overheating. These devices have different charging methods but some of the more popular ones are AC outlet and USB cables. The final option for a battery is an e-cigarette that is USB-tethered. These E-cigarettes require no battery, but will not work unless they are plugged into a USB port.
Even though many if not most of these electronic devices are designed to look like actual cigarettes there are some with very cool and unique designs. They also come in two different variations, reusable or disposable. The reusable electronic cigarettes come with refillable parts to allow for someone to continue using the same e-cigarette. The refillable parts are available to buy at the same locations that the electronic cigarettes were purchased. The disposable electronic cigarette can be used until the liquid solution runs out. The solution cannot be added again and it becomes useless.