Health Issues What's the Harm? Texas DSHS Are Electronic Cigarettes the New Trend? Office for Science and Society McGill University Infographic: Dangers of E cigarettes & Toxicity UPMC HealthBeat Smoking VS Vaping: Which is More Harmful to Your Dental Health? Riverside Dental 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.