https://en.wikipedia.org/wiki/Composition_of_electronic_cigarette_aerosol https://en.wikipedia.org/wiki/Composition_of_electronic_ciga... > E-cigarette vapor c

https://en.wikipedia.org/wiki/Composition_of_electronic_cigarette_aerosol https://en.wikipedia.org/wiki/Composition_of_electronic_ciga... > E-cigarette vapor contains many of the known harmful toxicants found in traditional cigarette smoke, such as formaldehyde, cadmium, and lead, though usually at a reduced percentage.[25]