Vaping and Electronic Cigarette (E Cigarette) Products Cattaraugus County Website Health effects and known pathology associated with the use of E cigarettes ScienceDirect 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. E cigarettes contain hazardous substances, addictive and harmful E Cigarettes and Vaping OHSU Know the Risks: A Youth Guide to E Cigarettes Notes View