The invention of e cigarette is a major breakthrough in the human society. An e-cig is propelled by a small lithium ion battery which powers the atomizer to warm up the e-liquid. It doesn’t backfire flying ash. Nor is it harmful to children. It doesn’t burn someone alive. Simply e-cig glows mildly. Every part of e-cig device is separable and detachable. You can buy e-nicotine cartridges for installation into the smoking device. Automatically it starts heating up the e-liquid to create a sweet to taste vapor for energizing you.