Secondhand Exposure to E Cigarettes Puts COPD Patients At Risk Respiratory Therapy Study suggests switching from smoking to vaping indoors may reduce children's secondhand exposure to nicotine How can I protect my child from thirdhand smoke in homes? Thirdhand Smoke Resource Center It's Not Just Cigarettes: Vape Residue Sticks on Surfaces Too Thirdhand Smoke Resource Center Tobacco & Vapor Product Prevention & Control Jefferson County, WA E Cigarettes (Vapes) Smoking and Tobacco Use CDC