Carbon monoxide is a gas that is odorless, colorless and tasteless, but very toxic.
Some signs indicating the presence of carbon monoxide in your home are stuffy, stale or smelly air, very high humidity or soot coming from the fireplace or heating system. The symptoms of carbon monoxide poisoning are often confused with those of the flu, and in fact the highest incidents of poisoning occur during the flu season. These symptoms can include headaches, dizziness, nausea, loss of muscle control, physical weakn ess and mental confusion. High concentrations of carbon monoxide can lead to unconsciousness, brain damage and death. However a victim may not experience any of these symptoms, or only a few.