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. Is vaping a safe alternative to smoking? A1AD Support Rethinking Vaping Second hand e cigarette emissions pose health risks How Switching to E Cigarettes After Smoking Cessation Affects Lung Cancer Risk Electronic cigarettes as harmfull as traditional ones