Cherry vape flavor compromises lab model of lung's slippery coating 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 Explainer: More teens are vaping. This is why that's a concern. College of Public Health UGA Are vape pens, or e cigarettes, ever the better option? Ohio State Health & Discovery