Table 4. Summary of the Resolute emergency decompression; 20/5 – BIBS 20 min, chamber gas 5 min; 25/5 – BIBS 25 min, chamber gas 5 min; BIBS – built in breathing system; FO₂ – inspired fraction of oxygen; msw – metres of seawater; PO₂ – inspired pressure of oxygen .

Depth (msw)	Breathing gas	Ascent rate (msw·h-1)	Comments
76–55	Chamber gas (heliox) PO2 = 60 kPa	7.8 (average)	Ascent of 21 msw performed in 2 h 42 min
55–43	Chamber gas PO2 = 60 kPa BIBS 20/5, 5 sessions heliox, FO2 = 20%	5	Decompression
43–20	Chamber gas PO2 = 60 kPa BIBS 20/5, 2 sessions BIBS 25/5, 7 sessions heliox FO2 = 35%	5	Decompression
20	Chamber gas PO2 = 60 kPa BIBS 25/5, 2 sessions heliox, FO2 = 50%	Hold	3 h 35 min hold
20–16	Chamber gas PO2 = 60 kPa	1	Decompression
16–10	Chamber gas FO2 = 23%	1	Decompression
10	Chamber gas FO2 = 23% BIBS 25/5, 3 sessions FO2 = 100%	Hold	5 h hold
10–0	Chamber gas FO2 = 23% After 4 h chamber gas BIBS 20 mins every 2 h to surface. FO2 = 100%	0.5	Decompression No DCS symptoms reported