More middle and high schoolers are getting exposed to secondhand vape aerosols, study indicates The Boston Globe Secondhand Vape Exposure: Effects, Who's at Risk, and More Secondhand Vape Exposure: Effects, Who's at Risk, and More Millions of people are exposed to secondhand smoke every day. People living in multi unit housing are some of the most exposed. The only way to fully protect people from secondhand smoke at In secondhand vape, scientists smell risk American Heart Association