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 Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA Secondhand smoke and secondhand aerosol What harm does second hand fumes from vaping cause to young lungs? Medical experts want to know ABC11 Raleigh Durham