Formaldehyde in E cigarettes, a Major Concern E cigarettes emit very high formaldehyde levels only in conditions that are aversive to users: A replication study under verified realistic use conditions ScienceDirect E cigs and Vaping: How Are They Impacting Our Youth? E Cigarette Formaldehyde Exposure Greater When Voltage is Higher: Study AboutLawsuits.com E Cigarettes Vaping with Juul & Other Electronic Cigarettes Electronic cigarette aerosol contains 6 times less formaldehyde than tobacco cigarette smoke Nicorex