Carbon monoxide (CO) is an underestimated health hazard. It is the leading cause of accidental poisoning at home, the impact of which leads to severe cardiovascular and neurobehavioral outcomes and even death.
Carbon monoxide is the second leading cause of poisoning in the United States with the highest risk in Wyoming, Alaska and Montana.
There's a reason why it is called the silent killer. You can't smell it or taste it or see it. It's impossible to know if it's there without the CO detector.