Secondhand smoke is harmful. Children exposed to secondhand smoke are at a 50 to 100% higher risk of acute respiratory illness. Say NO TOBACCO! Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Parents who vape may not see dangers of secondhand exposure to kids with asthma Contemporary Pediatrics Tobacco Smoke, Vaping, and Asthma AAFA.org