Secondhand Smoke and Electronic Cigarette Aerosols US EPA Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA 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 Vaping vs Smoking: Effects and Tips for Protecting Your Lungs Max Hospital Secondhand e cigarette vape smoke exposure increased in last 4 years, contain harmful toxins: JAMA Network study ABC7 Chicago