How can I protect my child from thirdhand smoke in homes? Thirdhand Smoke Resource Center Juul study shows secondhand vaping emissions are less toxic than cigarette smoke 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 About one in four adults in California report being exposed to secondhand smoke or vape in the past two weeksoften on sidewalks, at home, and in recreational spaces like parks and beaches. Dangers of Secondhand Vape From E cigarettes Secondhand Vaping Can You Get Secondhand Smoke from Vaping? ZOFO