Can You Be Allergic to Vapes? Grey Haze UK Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Secondhand Smoke Social Media Message Library Tobacco Education Clearinghouse of California As e cigarette use grows, more research needed on long term effects of vaping American Heart Association Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Understanding the Risks of Vaping for Your Health