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 Secondhand vape exposure: Risks and side effects Study shows second hand vaping exposure very low compared to second hand smoking Scientists Warn Against Breathing in Secondhand Vape 'Smoke' Newsweek Should I Be Concerned About Secondhand Vaping? The risks of first hand and second hand vaping Eoleaf