Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Complete Guide to Secondhand Vaping Devices Vape Direct Millions of people are exposed to secondhand smoke every day. People living in multi unit housing are some of the most exposed. The only way to fully protect people from secondhand smoke at Vaping Around Babies How Secondhand Vapor Smoke Can Harm Kids Secondhand smoke and secondhand aerosol Secondhand vape exposure: Risks and side effects