Secondhand Smoke and Electronic Cigarette Aerosol Resources US EPA Avoiding Tobacco Smoke and E Cigarette Aerosol Is a Key Part of Asthma Management Asthma and Allergy Foundation of America While vaping is not risk free, it is less harmful than tobacco Our World in Data Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek