Be very careful in getting her off of advair and spiriva because her lung
function may signifanctly drop from the 97% level in doing that.
I was a heavy smoker for 20+ years. Had a cancerous lung node removed
one year ago and a cancerous wedge removed from another node five months ago and
my Oxygen level is 95% at its low and 97% at its high and it varies between
those ranges. I walk daily for 30 minutes minimum and generally longer and
recommend anyone else with any lung disease to do the same. I'm 80 years
old.