what is an electronic cigarette Community Medical Centers Electronic cigarette - Wikipedia

In a hookah, a burned mixture of tobacco and molasses is drawn through water to cool the smoke

E-cigarettes feature a replaceable inhaler cartridge containing vegetable glycerin and/or polyethylene glycol, flavoring and nicotine

Vaping, E-Cigarettes, JUULing: What Parents, Teens Need to Know

Results of lab-based studies, including some in animals, suggest that compounds called nitrosamines in e-cigarettes can damage DNA, according to The team reported that lung cells were less able to repair themselves after exposure to e-cigarette smoke

The atomizer : This heats the liquid, causing it to vaporize so that a person can inhale it