Is vaping better than smoking? Or is vaping worse than smoking? JUUL: Side effects and health risks St. This vaping device, called a JUUL, might look like a USB drive, but it contains nicotine and other harmful chemicals. Alarmingly, this easily hidden device and its enticing vapor flavors, like JUUL Pod Ingredients: What's in E Cigarettes? JUUL Receives FDA Authorization for Menthol and Tobacco Pods What It Cell specific toxicity of short term JUUL aerosol exposure to human bronchial epithelial cells and murine macrophages exposed at the airliquid interface Respiratory Research Springer Nature Link