| We have a compressor, but no O2. Mainly because being a central London club, it's cheaper and easier for out members to go to their LDS then to drive into town.
I think BSAC did a survey a little while ago as part of the gas blender rewrite which showed that several hundred clubs are set up for Nitrox. Most of it is by partial pressure blending, but one or two have membrane systems, and two use molecular weighing! (I presume they're uni clubs in science departments)
Janos
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