Clear' Vapes May Have Even Worse Health Effects MedPage Today 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 riskfree. Smoking vs vaping what are the key differences? Evapo Protecting Youth From the Harms of Vaping Smoking and Tobacco Use CDC