Hidden dangers: Toxic metals found in popular disposable vapes SEATCA New study finds disposable vaping devices more toxic than traditional cigarettes Myth: Vaping is harmless. Fact: Vapes contain nicotine and other chemicals that can harm your lungs and make it harder to quit for good. In California, vapes are now one of the The 101 on e Cigarettes Infographic American Heart Association 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