My wife and I got COVID a couple weeks ago. We’ve stayed out of the hospital through responsible self-treatments including ivermectin, HCQ, NAC, D, C, etc. Her SpO2 was most 93-94. Mine stayed at 97. I even maintained 10,000 steps a day, and biked 25 miles Labor Day, although at an all-time slowest pace.
An irresponsible super-spreader infected the whole department where my wife worked. Some are in the hospital/ICU because they just know what they’re told.
I recall reading recently, that oxygen therapy works better than pumping room air using ventilators.