High concentrations of flavor chemicals are present in electronic cigarette refill fluids Scientific Reports Truth About E Cigarettes and Vaping: Are They Safer Than Smoking for Lung Cancer Risk? Flavoring Agents in E cigarette Liquids: A Comprehensive Analysis of Multiple Health Risks Cureus E Cigarettes and Vaping PPAC Central While e cigarettes, or vapes, may contain fewer chemicals than regular cigarettes, they are still NOT safe. E cigarettes contain harmful chemicals. 99% of e cigarettes contain nicotine, making them highly addictive. Visit https: t.co 1y8cZxtgFQ to ELECTRONIC SMOKING DEVICES