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 Have you ever breathed in secondhand vapor from a vape? What exactly are you inhaling? It turns out it's a lengthy list of chemicals. FULL STORY Secondhand Marijuana Smoke and Indoor Air Quality US EPA Tobacco Smoke, Vaping, and Asthma AAFA.org Impacts of vaping and marijuana use on airway health as determined by exhaled breath condensate (EBC) Respiratory Research Springer Nature Link Secondhand Smoke