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. While vaping is not risk free, it is less harmful than tobacco Our World in Data Lung cancer risks persist with e cigarette use after quitting tobacco smoking Vaping vs. smoking: what are the risks? Pacific Life Re Perceived Health Risks of nicotine and toxins Chemicals in E Cigarettes Download Scientific Diagram