Is Vaping a Lung Cancer Risk? Elite Medical Center Understanding Vaping and Lung Cancer: Risks and Insights Former Smokers Who Vape at Greater Risk of Lung Cancer RT The research looked at the chemical composition of "vape smoke" and assessed its cancer risk using data from published animal studies. Read more Many students believe that vaping harmless, which is far from the truth. Vape pens can contain potentially harmful substances such as chemicals linked to lung disease, cancer causing chemicals, heavy metals such as E Cigarettes and Vaping OHSU