Health Effects Vaping Information, Solutions & Interventions Toolkit Stanford Medicine E cigarette aerosol isn't just water vaporit contains toxic chemicals like formaldehyde and acrolein (yes, a weed killer!). Vaping can lead to lung disease, Popcorn Lung, and even a collapsed lung. Plus, secondhand Link between e cigarette use and early age of asthma onset in US adults discovered Why Vaping is Dangerous, Especially for Children with Asthma The National Environmental Education Foundation (NEEF)