High concentrations of flavor chemicals are present in electronic cigarette refill fluids Scientific Reports Thousands of Unknown Chemicals Found in E Cigarettes Respiratory Therapy Don't be fooled by the smoke or the flavor. Vapes and cigarettes both contain toxic chemicals that can harm your body. #BeSafeDontVape #TobaccoFreeGeneration Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Vaping, Environmental Toxicants Exposure, and Lung Cancer Risk