E cigarettes emit very high formaldehyde levels only in conditions that are aversive to users: A replication study under verified realistic use conditions ScienceDirect The Truths Behind Vaping: Information for Youth and Teens USU Is Formaldehyde in Vapes? Test reveals toxic content found in vapor from illicit THC cartridges 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 Vaping is often seen as a less harmful alternative to smoking, but since it is still relatively new, there is no way to study the long term effects. Both vaping and smoking irritate