An emergency fitting apparatus including a fitting body member having a first end and an opposing second end, a first port disposed at the first end of the fitting body member and formed to mount to a high-pressure compressor, a second port disposed at the second end of the fitting body member and formed to mount to a high-pressure flask, and a third port disposed between the first and second ports and formed to detachably mount to at least one self-contained breathing apparatus (SCBA) air cylinder.