We spend much of our time indoors. The air that we breathe at home, work, and in schools can affect our respiratory health. Indoor air pollutants include chemicals, gases, and living organisms like molds, and pests. Some pollutants are especially harmful for children, the elderly, and those with sensitive lungs and respiratory health issues.
Indoor air pollutants can cause serious health problems and may trigger allergies, worsen asthma and cause long-term respiratory conditions. Some individual pollutants in high concentrations, such as carbon monoxide, are extremely dangerous and can even cause death. Radon is the leading cause of lung cancer among nonsmokers and the second leading cause of lung cancer overall.