Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine Exposure to secondhand vaping fumes among teens raises concerns UPI.com Tobacco Smoke, Vaping, and Asthma AAFA.org Second hand vape smoke linked to more asthma symptoms in kids Tobacco Smoke, Vaping, and Asthma AAFA.org About one in four adults in California report being exposed to secondhand smoke or vape in the past two weeksoften on sidewalks, at home, and in recreational spaces like parks and beaches.