The Electronic Cigarette has been developed in China by Hon Lik of Ruyan is gaining in popularity in India among smokers who want to give a shot to quitting without getting rid of their nicotine fix.

In June 2008, Chennai-based SPK introduced E-Cigarettes in India, that provides a nicotine kick to smokers but has no cancer-causing ingredients.
The E-Cigarette is a non-flammable device that consists of a tiny rod that is longer than a real cigarette, and comes with a replaceable cartridge that contains liquified nicotine, propylene glycol, tobacco flavor, and a membrane to hold the ingredients. The E-Cigarette also has a small rechargeable battery that allows nicotine to be converted into vapor with each inhalation.

It has got a sensor present in the E-Cigarette.It detects the air flow when a smoker takes a puff and a microprocessor injects tiny small drops of liquified nicotine, which gets vaporised.

It’s vapour dissipates fast and has no smell. To make the mist look like normal cigarette smoke, ethylene glycol is used.The tip of the E-Cigarette glows red to mimic traditional cigarettes, using an orange LED.

The ingredients of E-Cigarettes – propylene glycol, nicotine, and tobacco scent – are non-carcinogenic agents. The Food and Drug Administration gives a clean chit to propylene glycol. Nicotine, on its own, is harmless and can be found in staple food such as pepper, tomato, eggplant and potato. The E-Cigarette has been certified by the Food and Drug Administration (FDA)  and The European body called Restriction of Hazardous Substances (ROHS).
*Recent analysis Finds Toxic Substances in Electronic Cigarettes
Electronic cigarettes contain traces of toxic substances and carcinogens, this has been raised after a preliminary analysis by none other than FDA.