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. Some reports state that these new, flavored smoking devices are less harmful than tobacco cigarettes but how safe is vaping? In this third part of a four part series, China Daily examines the E CIGARETTES DANGER FOR YOUNGSTERS NEEDS URGENT CONTROL Mega Story Vaping's Harmful Effects on Our Patients AAO HNS Bulletin How E Cigarettes Affect Your Body Infographic: Dangers of E cigarettes & Toxicity UPMC HealthBeat