Does Vaping Cause Lung Cancer? Researchers Find Toxic Metals in E Cigarette's Johns Hopkins Bloomberg School of Public Health 5 Vaping Facts You Need to Know Johns Hopkins Medicine Vaping Talk Now AZ Recent studies have found metal within vaping dispensers, which can be toxic when inhaled. #Aspirus Respiratory Therapist Sarah Schroeder sat down with WSAW NewsChannel 7's Kassandra Sepeda WSAW and Sean Caldwell to Teen vaping linked with toxic lead exposure, study finds CNN