Clinical Impact of Vaping 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. Health impacts of electronic cigarettes ANU National Centre for Epidemiology and Population Health Health Effects of Vaping E Cigarettes and Associated Health Risks: An Update on Cancer Potential Health effects and known pathology associated with the use of E cigarettes ScienceDirect