What are three visual indicators that carbon monoxide may be present in a home?

The presence of dead plants, soot on vents, and moisture on windows can indeed serve as important visual indicators that carbon monoxide may be present in a home.

Dead plants can indicate that there is an issue with air quality or circulation, as plants are sensitive to their environment and can suffer from reduced oxygen levels or toxic gases. Soot on vents suggests that there may be incomplete combustion occurring in appliances that use fossil fuels, which can produce carbon monoxide as a byproduct. Finally, moisture on windows could point to insufficient ventilation and poor air quality, which can lead to the buildup of harmful gases like carbon monoxide.

Recognizing these indicators can help homeowners take timely action to investigate potential sources of carbon monoxide and address any hazardous conditions in their living environment.