Is Mouth to Lung Vaping Better Than Direct to Lung? Vape Lungs Vs Smoker Lungs Vaping It's No Smoke and Mirrors When it Comes to Urinary Health Issues Yes, vaping is toxic and the consequences can be permanent. A U.S. teenager developed popcorn lung a life altering, incurable condition after secretly vaping flavored e cigarettes for Outbreak of Lung Injury Associated with the Use of E Cigarette, or Vaping, Products Electronic Cigarettes Smoking & Tobacco Use CDC