At Royal Hospital Haslar:
Modified Royal Navy Type A Recompression Chamber (modified by addition of a patient-friendly arched door into main chamber)
External diameter 2438 mm
Hull thickness 13 mm
Outer door dimensions 1698 mm at highest point, 749 wide
Outer hatch opening 860 mm diameter
Inner hatch opening 750 mm diameter
2 compartments – Man lock (7 cubic metres, 1.5 m long) and main chamber (19 cubic metres, 4 m long)
Accommodation for 5 seated patients / 3 seated, 1 lying / 2 lying
Maximum working pressure 8.5 bar (gauge), equivalent to a depth of 85 metres of seawater
Environmental control system to regulate temperature and humidity and remove carbon dioxide
Gases available – oxygen, air, 50% oxygen in nitrogen
At Queen Alexandra Hospital Cosham:
This unit is a category 1 facility, which means that it can take patients who need intensive care during the treatment.
Containerised Royal Navy Type B Chamber
Accommodation for 2 patients seated or lying
External diameter 1864 mm
Hull thickness 12 mm
Outer hatch opening 860 mm diameter
Inner hatch opening 750 mm diameter
2 compartments – Man lock (3.8 cubic metres, 1.5 m long) and main chamber (6.8 cubic metres, 2.5 m long)
Maximum working pressure 8 bar (gauge), equivalent to a depth of 80 metres of seawater
Scrubbers to remove carbon dioxide
Oxygen make-up system
Fitted with a Servo 900C ventilator for critically ill patients
Gases available – oxygen, air, 50% oxygen in nitrogen
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