Vapes vs Cigarettes: Which One is More Deadly? Atlus What Does Vaping Do to Your Lungs? Johns Hopkins Medicine 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 Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Study shows vaping is more dangerous than smoking