In Group I-2 and I-3 occupancies, what feature must air distribution systems have for emergency situations?

In Group I-2 and I-3 occupancies, which typically include medical facilities and correctional institutions, air distribution systems are required to have a manual emergency control feature. This necessity stems from the unique challenges and risks present in these environments.

Manual emergency control allows designated personnel to quickly and effectively respond to emergency situations, such as fires or hazardous material spills, by enabling them to adjust or shut down the ventilation system as needed. This control is crucial for ensuring that the air quality can be managed in a way that protects the health and safety of both occupants and first responders during an emergency.

While options like automatic shutoff, remote control access, or smart triggers could provide certain advantages in other contexts, they may not always offer the immediacy and reliability needed in critical situations present in Group I-2 and I-3 properties. Manual controls can be employed even in unforeseen circumstances when automated systems might fail or when a quick human decision is necessary for safety.