Cardiovascular Consequences of E Cigarettes: A New Challenge for Cardiologists E cigarette aerosol is NOT harmless water vapor. Get the facts at https: www.cdc.gov tobacco basic_information e cigarettes Quick Facts on the Risks of E cigarettes for Kids Teens and Young Adults.html Addressing the challenges of E cigarette safety profiling by assessment of pulmonary toxicological response in bronchial and alveolar mucosa models Scientific Reports Secondhand smoke and secondhand aerosol