It's not just vapor. Your vape could contain the same amount of nicotine as of 30 packs of cigarettes, plus other harmful chemicals. Want help quitting? SMCHDs next Nicotine Cessation Class starts Dangers of Vaping: Juuling (Table Top Retractable Banner) NIMCO, Inc. What Does A JUUL Really Do To Your Body? Franciscan Health Vapes are harmful and can be highly addictive. Some disposable vapes have nearly tripled in nicotine strength in the span of only 5 years.