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. How safe are e cigarettes? E Cigarettes and Vaping PPAC Central An often made claim that e cigarettes are '95% safer' is not valid VCU News Virginia Commonwealth University FDA hazy on e cigarettes' safety CNN.com 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