Effects Of Second Hand Vape Smoke Thirdhand Smoke Resource Center Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Second Hand Vaping: Minimal Impact Compared to Smoking Vaping Produces Far Less Second Hand Nicotine Than Smoking Respiratory Therapy Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Have you ever breathed in secondhand vapor from a vape? What exactly are you inhaling? It turns out it's a lengthy list of chemicals. FULL STORY