Hi DenW: From my viewpoint 95/96 SpO2 is great. Alost 9 years ago with a SpO2 of 70% my Pulmonologist said oxygen 24/7 for rest of my life. Being a Taurian I did not accept that and decided, for me, that using oxygen all the time would not allow my lungs to try to recover. At taht time I did not think apO2 of 70% was serious even when a visiting Nurse stated that she couldn0t believe I could still walk. For one month I used oxg¿ygen for 1.5 hours a day in 15 minute increments. I recorde Oximeter readings on the hour and created a Table and Chart. At end of month my SpO2 was back in 92-94 reange. I sent data to Doctor. He was surprised and I have not had to visit him since then. I keep arythromycin on hand for any secondary infections plus I have large bottle oxygen waitingto be used. My SpO2 has been as low as 63% but readings below 70% are not reliable. I use daily Spiriva and Symbicort plus drink lots of fluids in form of Guava Leaf Tea. I can do because I have tree in backyard.I was going to start a 70%Club with friends who had SpO2 readings of that level. The seriousness of that level came to realization when my neighbor reached that level and did not recover. I also use Apple Cider Vinegar on just about everything as I read that it helped losen mucous. And Fish & Chips without ACV unthinkable. I hope your outside SpO2 increases but I myself would be very happy with those levels. Outside you might try "pursed breathing". To do pursed lip breathing: I know it works.
Relax your neck and shoulder muscles.
Breathe in for two seconds through your nose, keeping your mouth closed.
Breathe out for four seconds through pursed lips. If this is too long for you, simply breathe out twice as long as you breathe in.