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 In secondhand vape, scientists smell risk American Heart Association Can You Get Secondhand Smoke From a Vape or E Cigarette? Secondhand Smoke and Electronic Cigarette Aerosols US EPA 5 Vaping Facts You Need to Know Johns Hopkins Medicine