It can cause or make worse a wide range of damaging health effects in children and adults, including cancer, respiratory infections and asthma Secondhand smoke remains more widespread than most people think, experts say, with serious health ramifications for nonsmokers, especially children, Black adults and people living below the poverty line. Secondhand smoke is defined as the combination of smoke from burning cigarettes and the smoke breathed out by smokers To Affect You Secondhand Smoke Concept. On A Tobacco-free Day, Smoking Is Undesirable Australia Who Smokes Outside No Tobacco Day Concept. Illustration Raising Awareness About The Dangers Of Secondhand Smoke Affecting Nonsmokers Vector Illustration Image609372328