What is Carbon Monoxide (CO)? Where does it come from? How can I prevent CO Poisoning? What should I do if I suspect I have CO Poisoning? All very important questions that home owners and even businesses should ask themselves. According to the Centers for Disease Control and Prevention, “more than 400 Americans die from unintentional CO poisoning not linked to fires, more than 20,000 visit the emergency room, and more than 4,000 are hospitalized.” Luckily, there are ways to prevent this from happening.