Is Formaldehyde in Vapes? Sikary Vape Official Website Clearing the Air: Do Vapes Still Contain Formaldehyde? 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 Daily exposure to formaldehyde and acetaldehyde and potential health risk associated with use of high and low nicotine e liquid concentrations Scientific Reports