Acute Carbon Dioxide Intoxication in A Fire Control Facility

Carbon dioxide is noted to be a simple asphyxiant and can reduce air oxygen concentration in a confined space. The injury mechanism of carbon dioxide intoxication was thought to be more than simple asphyxia on several dry ice accident reports. Here, we present an incident with seven persons involved due to unpredictable discharge of a carbon dioxide fire extinguisher system in an underground parking lot. We demonstrate these cases in brief to expound and discuss the possible toxic mechanism of carbon dioxide in addition to asphyxia only.