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. New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking are e cigarettes unsafe? SiOWfa15: Science in Our World: Certainty and Controversy The hidden fire risks of vaping and e cigarettes: what you need to know Dr. Nancy Snubs Out E Cigarette Myths Is vaping a safe alternative to smoking? A1AD Support