Heated Tobacco Products, Cigarettes, and E Cigarettes: What's the Difference PMI Science E Cigarettes and Vaping Tear Pad Health Edco 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.