Teenagers Keep Vaping Despite Crackdowns on E Cigarettes The New York Times Vapes are harmful and can be highly addictive. Some disposable vapes have nearly tripled in nicotine strength in the span of only 5 years. Deconstructing contemporary disposable vapes: A material and elemental analysis ScienceDirect Nicotine absorption from electronic cigarette use: comparison between first and new generation devices Scientific Reports