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. Vapes '95% safer' than cigarettes messaging backfired While vaping is not risk free, it is less harmful than tobacco Our World in Data Young non smokers told not to take up vaping by experts