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 E Cigarettes (Vapes) Smoking and Tobacco Use CDC Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals Don't Be Fooled, E cig Aerosol Is Not Harmless for Kids American Lung Association Secondhand Smoke Vermont Department of Health Early research says secondhand smoke from vaping may not be as bad as cigarettes, but it's still not harmless. https: fox59.com news national world does vaping cause secondhand smoke doctors explain the side effects