Electronic cigarettes

Electronic cigarettes, also known as E-cigs, Ecigs, personal vaporizer or electronic nicotine delivery system (ENDS), are a battery powered device - sometimes, but not always in the form of a cigarette, that can dispense a vapor that contains nicotine, but none of the harmful chemicals found in normal cigarettes where tobacco leaves are combusted.

For some reason, the anti-smokers think that these are bad things.