The Vape Debate: This New Trend May Be Riskier Than You Think MedStar Health Disposable vapes ban could push some users back to smoking, ministers told Vaping The Guardian Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Another Gross Reason to Put Down the E Cigarettes American Lung Association Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Mayo Clinic Minute: Are e cigarettes safe? YouTube