If you go into a vape shop, you can find out a lot about how ecigs work. The essential concept behind using a vape rather than a traditional cigarette is that you avoid carcinogens from the burning paper, the carbon filter, and the smoke from burning tobacco. You can avoid the smell associated with cigarettes and keep away the byproducts that occur when you light a cigarette with ecigs and vaporizers. An electronic cigarette is filled with liquid which is then vaporized and inhaled in the same way water vapor is in a sauna. Our lungs can handle cooler temperatures much better than hot smoke, which causes long term damage, and you get to enjoy smoking in the meantime.