There Is No Justification for Disposable Vapes Period. Vaping Harmless. Vape aerosol contains toxic chemicals like formaldehyde, arsenic, lead, chromium, and nickel. They damage lungs. They harm developing brains. They raise cancer risks. We Metals in Disposable E cigarette Vapor Pose Health Risks RT UC Davis study: Disposable vapes may be more toxic than cigarettes Vaping Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA)