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 Effect of second hand fumes from vaping on young lungs Dangers Of Second Hand Vapes Can Disposable Vapes Cause Secondhand Vapor Second Hand Vape Smoke Dangers Is Second Hand Vape Smoke Bad For You? Learn How to Avoid its Side Effects Secondhand Vape Exposure: Effects, Who's at Risk, and More Health Risks of Secondhand Smoke and Aerosols Factsheet US EPA