Do you know everything that makes up the liquid in an e cigarette? WHO warns that e cigarettes are not a reliable treatment for smoking cessation. E cigarettes are powered by a rechargeable Comparison of the chemical composition of aerosols from heated tobacco products, electronic cigarettes and tobacco cigarettes and their toxic impacts on the human bronchial epithelial BEAS 2B cells ScienceDirect Not just water vapor: why e cigarettes are so dangerous PUBLIC HEALTH INSIDER High concentrations of flavor chemicals are present in electronic cigarette refill fluids Scientific Reports