Health effects and known pathology associated with the use of E cigarettes ScienceDirect Nonnicotine vapes may be marketed as safe, but many still contain chemicals, have unknown health effects, and aren't FDAregulated. Teens are using them more ofteneven alongside nicotine vapes. No ecigarette is risk free. Resources & Publications Electronic Cigarettes Smoking & Tobacco Use CDC Clinical Impact of Vaping Toxicological Effects of E Cigarettes on Cells, Animals, and Humans and Mechanisms of Toxicity Springer Nature Link JUUL E Cigarettes Harrison County Health Department