Hoddy
Just be aware of the potential fire hazards when using O2. All fittings must be grease free. In industry O2 has to be stored in a well ventilated area. O2 itself is not flammable but it increases the combustion rate flammable material.
Some years ago as a saturation diver I was in a recompression chamber when a quad (16 cylinders) ignited because there was grease on the fittings, watching a six metre flame through a porthole when the quad was eight metres away, with nowhere to run brings on the need to change your underwear. Fortunately a brave rigger managed to attach it to the crane and it was dumped over the side.
Always respect O2 under pressure.
