Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN In secondhand vape, scientists smell risk American Heart Association