Why is carbon monoxide considered a serious indoor air concern?

Carbon monoxide is considered a serious indoor air concern primarily because it is a colorless and odorless gas, which makes it extremely difficult for individuals to detect without specialized equipment. Its invisibility and lack of smell mean that it can accumulate in indoor environments without occupants being aware of its presence. This accumulation can lead to dangerous concentrations that pose severe health risks, including headaches, dizziness, confusion, and even death in high levels of exposure.

In many cases, carbon monoxide is produced by the incomplete combustion of fossil fuels, often from common sources such as gas stoves, heating systems, or car exhaust in attached garages. Since it can be fatal, the risks associated with exposure to carbon monoxide are significant, highlighting the need for proper ventilation and the installation of carbon monoxide detectors in homes and buildings. Addressing carbon monoxide concerns is vital for maintaining a safe indoor environment.