Secondhand Vape Exposure: Effects, Who's at Risk, and More 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 Secondhand exposure to vaping can cause serious respiratory issues study The Jerusalem Post While vaping is not risk free, it is less harmful than tobacco Our World in Data Does cannabis create thirdhand smoke? Thirdhand Smoke Resource Center