Vaping vs Smoking vs IQOS: Which is Least Harmful? Don't Pollute Yourself The Real Cost Has someone ever told you that vaping is harmless? The truth could not be further. Vaping is addictive and harmful to your health. It is also illegal in Singapore, and Vaping: Four Reasons It's Not a Harmless Trend Good Neighbor Pharmacy 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 HealthMatch Vaping may be safer than cigarettes, but it's not safe