La cigarette lectronique et l'e liquide (pour professionnels de la sant) Centre Antipoisons Infographic: Dangers of E cigarettes & Toxicity UPMC HealthBeat Vaping: Know the Dangers Rady Children's Health The Dangers of Vaping Oral Health Perspective 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.