The smokeless cigarette was made to offer the user an excitement about smoking while not using a harmful chemical at the time. They give nicotine to the user w/o cancer causing agents or other harmful chemicals that are normally associated with conventional tobacco products. You can use them in so many places where smoking is forbidden.
They produce a simulated smoke that is actually water vapor. It looks, taste and feels like real tobacco smoke. When exhaled the water vapor harmlessly is released in the air within just a few secs. They don't use tobacco at all. As a matter a fact, The nicotine does not come from the tobacco itself, but comes from other sources. There is no ignition source, because its non-flamable.
The main part of the e cigarette is made up of a rechargeable battery with a light that lights up, & an atomizer & a safe flavored nicotine cartridge ranging from different flavors.
The electric cigarette is activated when the user sucks in on the cartridge tip. The air-flow going through the battery powers the electricity that powers the micro-processor & atomizer. Whatever type of substance is in the cartridge (in this case flavored tobacco with nicotine) is then converted to water vapor because it's in contact with the atomizer. Which carries the desired level of nicotine into the users mouth and lungs if preferred.
Charging used cartridges is as simple as pulling them out and placing them back in. If you want to charge the battery it's as easy as un-screwing the battery and then screwing it back on clock-wise into your wall charger or USB for a fast three hour charge. Depending on your model, but about 90% or more come with a PC USB plug or wall outlet.
The electric cigarette is pollution free, safe for the environment with no lingering smell, there's minimal risk of lung cancer & its free from the dangers of second hand smoke.