Vaporizing tobacco: is vaping worse than smoking, differences, quitting smoking Experts explain what vaping does to your body just one hour after first puff Daily Record How Long Vape Smoke Remains in the Air Do Vapes Set off Smoke Alarms? How to Avoid It Smoking vs Vaping Which is Worse? Smoking: 1. 7,000+ harmful chemicals 2. Causes lung cancer, COPD, heart blockages, strokes 3. Long term, progressive, and deadly Vaping: 1. Marketed as "safer" but misleading Vapes are harmful and can be highly addictive. Some disposable vapes have nearly tripled in nicotine strength in the span of only 5 years.