Toxic Taxidermy The Real Cost 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 Construction of electronic cigarettes Wikipedia E cigarettes emit very high formaldehyde levels only in conditions that are aversive to users: A replication study under verified realistic use conditions ScienceDirect Is Formaldehyde in Vapes?