Call: 888-217-2719. Most of us understand the risks associated with smoking cigarettes. Secondhand smoke contains more than 7,000 chemicals with 250 of them known to be harmful. Even when non-smokers are around smoke, they unknowingly breathe in these compounds, which can result in health issues. Young children are particularly susceptible to smoke. Even when non-smokers unknowingly breathe in the harmful chemicals of tobacco smoke, it can significantly impact their health.