Can You Be Allergic to Vapes? Grey Haze UK Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Is secondhand vaping a growing scandal or 'fake news'? Understanding the Risks of Vaping for Your Health Secondhand Smoke Social Media Message Library Tobacco Education Clearinghouse of California