Thanks for that! Yes they are 5% increments so my big drops go below 70%, which I though was a little concerning?

I'll try to use bigger images next time.

Thanks for the feedback

Hi there I am new to all this. I have stopped breathing as I slept for years (my wife told me) however I have never done anything about it. Ive had a few symptoms recently that may (or not) be attributed to sleep apnea so though Id get myself an oximeter. So, two nights later here I am with my graph...