How long does co can cause death?

Carbon monoxide (CO) can cause death within minutes to hours, depending on the concentration of the gas and the duration of exposure. At high levels (above 1,200 parts per million), unconsciousness can occur within 3-5 minutes, leading to death if not treated. Even lower concentrations can be lethal over longer periods, particularly in enclosed spaces. Prompt recognition and intervention are crucial to prevent fatal outcomes.