Take Why should you make your home a smoke-free home? the The Surgeon General says there is no safe level of Pledge! secondhand smoke exposure. Tobacco smoke contains over 4,000 chemicals. 40 of which are known to cause cancer. Secondhand smoke is a known cause of childhood sicknesses such as ear infections, respiratory tract infections and SIDs (sudden infant death syndrome). Pledge to make your home smoke-free Children exposed to secondhand smoke in the home are 44% more likely to suffer from asthma.and receive a Smoke-Free Homes kit complete with magnets, coasters, decals and more! Ask your doctor or nurse about taking the pledge or contact the Smoke-Free Housing Coalition by visiting www.smokefreeforme.org or by calling (207) 874-8774.