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 Does Vaping Cause Lung Cancer? What Are the Risks from Secondhand Vape Smoke? NVB Inc. Is Vape Smoke Bad For Second Hand Is There 2nd Hand Smoke From Vapes Covid 19 Juul study shows secondhand vaping emissions are less toxic than cigarette smoke Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London