What Does A JUUL Really Do To Your Body? Franciscan Health Dangers of Vaping *Did you know that smoking 1 vape pod is the equivalent of smoking 1 pack of cigarettes. *Vape pods can have dangerous chemicals in them including formaldehyde, acetone and Harvard researchers discover toxin in Juul pods that can cause longterm lung damage If you think vaping isn't harmful or addictive, think again! About 1 pack of cigarettes (about 20 cigarettes) has 20 mg of nicotine. That compares to 1 JUUL pod that has 41 Juul E Cigarettes Side Effects, Addiction Risks & Teen Use