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 E cigarettes and Vaping Commercial Tobacco Use MN Dept. of Health Vaping and Electronic Cigarette (E Cigarette) Products Cattaraugus County Website How Does Vaping Affect You? Short & Long Term Effects Explained The dangers of vaping Baylor College of Medicine Blog Network No, vapes aren't 95% less harmful than cigarettes. Here's how this decade old myth took off