2cents,
Not only do I disagree with you, you’re VERY wrong. Many people couldnt be saved because when you’re laying in bed with Covid, you dont feel a shortness of breathe until it’s too late.
I speak of this first hand, and from hearing from many others directly
I had corona back in March. I was monitoring O2 early, and when my oxygen dropped to 88 after a week, I went to the hospital and was able to to get oxygen and not need intensive care. Doctor told me catching low %O2 was VERY good.
I didnt feel ANY shortness of breathe, but O was VERY much out of full lungs.
Like OP said- if you have corona, get a pulse oxy. Monitor your breathing and pulse. You might not feel shortness of breathe until it drops to 75-80%- and that can cause FAR more damage.
It’s a very cheap piece, and only costs a small battery to us.
Dont argue on amazing advice, one that saved my life
Or significant damage; and many others I know personally.