Exposure (toxicology)
Another inhaled toxin that causes acute exposure is smoke from house fires.  There are many toxins in this kind of smoke, including carbon monoxide and cyanide.  Firefighters or people who were trapped in fires can get cyanide poisoning or carbon monoxide poisoning from breathing in these toxins.  This is an example of an acute exposure, because the smoke was not breathed in for more than 24 hours.