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 Second hand e cigarette vapour increases risk of poor respiratory health, study finds Nursing in Practice Project Filter Secondhand Vape Informational Poster #1 Idaho Health Tools Parents using e cigs expose kids to dangerous secondhand vapor Futurity Secondhand vaping may pose risk to your kids: New study Secondhand Vape Exposure: Effects, Who's at Risk, and More