yes it sure is poc or products of combustion fatal stuff if not used as intended like carbon monoxide odderless you have no idea its in the air often untill it's too late.
The most common symptoms of CO poisoning are headache, dizziness, weakness, upset stomach, vomiting, chest pain, and confusion. CO symptoms are often described as “flu-like.” If you breathe in a lot of CO it can make you pass out or kill you.