Secondhand Vape Exposure: Effects, Who's at Risk, and More Despite widespread smoke free policies in California, rates of recent exposure to secondhand tobacco smoke, vape aerosol, and cannabis smoke among adults aged 1864 have been slowly increasing since 2020, with vape exposure Thirdhand Smoke Resource Center Protecting Californians Secondhand Smoke "Family" Maine Prevention Store Secondhand exposure to vaping can cause serious respiratory issues study The Jerusalem Post