formaldehyde? was that always in our ejuice ,or was it just added ? : r Vaping 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 dontvape #vapeawareness #29youthcouncil Does Vaping Harm Eyesight: Effects of E Cigarettes on Vision La Jolla, CA Del Mar, CA GW Eye Associates