Are vape pens, or e cigarettes, ever the better option? Ohio State Health & Discovery Smoking and vaping are often compared, but neither is harmless. While they work differently, both can expose the lungs to addictive nicotine and harmful chemicals that impact breathing and overall health. Smoking How to Vape? Inhale & Safety Tips For All Vaping Styles Vaping For Beginners: How Do You Inhale and Exhale Vapor? Medical Marijuana, Inc.