While vaping is not risk free, it is less harmful than tobacco Our World in Data HealthMatch Vaping may be safer than cigarettes, but it's not safe Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health. Health effects and known pathology associated with the use of E cigarettes ScienceDirect