Secondhand e cigarette vape smoke exposure increased in last 4 years, contain harmful toxins: JAMA Network study ABC7 Chicago Vaping Indoors and How it Contributes to Sick Home Syndrome Bactronix 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 Can you get second hand smoke from a vape Secondhand Smoke Social Media Message Library Tobacco Education Clearinghouse of California