First, Second and Thirdhand Smoke: The Differences and Dangers Tobacco Stops With Me Effects Of Second Hand Vape Smoke Is Secondhand Vaping Harmful To Your Health? Vaping is less harmful than smoking, experts say. Why don't smokers know this? Scienceline Vaping vs Smoking Clearing the Air on Health Impacts Evidence update on the cancer risk of vaping e cigarettes: A systematic review 2nd Hand Vape Smoke Exposure to secondhand vaping fumes among teens raises concerns