I have been struggling for the last 3 years with COPD .Latterly a walk of 200 yards would mean at least 6 stop to get my breath back, 7 months ago I bought an Oximeter. My oxygen levels were reasonable in the 90,s but my pulse rate at times were as low as 35 fluctuating to 55.My doctor advised a 24 hour heart monitor and a couple of weeks later rushed into hospital and a pacemaker fitted . My breathing has improved and I now walk 200 metres without stopping.. A longer walk results in pain in my hips and knees and my oxygen levels vary from 8.5 to 9.4.
Advice please re Oxygen-air compressors.
Mikef