To limit the probability that smoke will spread through or around closures in fire separations between fire compartments, which could lead to patients and emergency responders being exposed to hazardous conditions, which could lead to harm to persons, including emergency responders.
To limit the probability that smoke will spread through or around closures in fire separations between fire compartments, which could lead to emergency responders being exposed to hazardous conditions, which could lead to fire emergency response operations being delayed or ineffective, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons, including emergency responders.