A breathable air safety system and method having at least one fill site is disclosed. In one aspect, a method of safety of a structure is disclosed. A prescribed pressure of an emergency support system is ensured to be within a threshold range of the prescribed pressure by including a valve of the emergency support system to prevent leakage of breathable air from the emergency support system. The prescribed pressure of the emergency support system is designated based on a municipality code that specifies a pressure rating of the breathable air apparatus that is used in an authority agency of a particular geographic location. An air extraction process is expedited from the emergency support system by including a RIC (rapid interventions company/crew) /UAC (universal air connection) fitting to a fill panel to fill a breathable air apparatus.