Chugachmiut See the sites below for more information on secondhand smoke: https: www.healthline.com health second hand vape#at risk groups https: www.webmd.com lung cancer guide vaping lung cancer#:~:text=Ecigarettes%2C%20sometimes%20called%20vapes The Issues of Testing for Secondhand Smoke. Indoor Science Secondhand smoke and secondhand aerosol The Health Risks Of E Cigarettes Versus Traditional Cigarettes Henry Ford Health Detroit, MI Debunking 7 Myths About Secondhand Smoke Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London