E Cigarettes Can Churn Out High Levels Of Formaldehyde Connecticut Public E Cigarettes and Cardiovascular Disease Risk: Evaluation of Evidence, Policy Implications, and Recommendations Current Cardiovascular Risk Reports Springer Nature Link What's REALLY in your cigarette or vape? You're not just inhaling nicotine. Cigarettes contain arsenic, ammonia, and formaldehyde yes, the same stuff used to embalm bodies. Vapes? Heavy metals, toxic chemicals, New study shows higher formaldehyde risk in e cigarettes than previously thought