The data they'll hopefully download from it will show them the highest pressure it used during that time period, the highest pressure it used most often, and the pressure used most often (high or low). From that they will probably determine your new pressure or validate you having one that you can get the data from.
Yes, it will change from night to night because no two nights are the same. But eventually a trend will start to emerge. It's been interesting to see my data each day for the first time ever.
Apnea Board Moderator
Breathe deeply and count to zen.
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