How long is Hi-rate data kept on Airsense 10 Autoset SD card

[becker44a]

I am noticing that the SD card in my Airsense 10 Autoset For Her is storing quite a lot of data after just a little over 2 months since first use.  My S9 Autoset deleted the hi-rate data older than about a week, so the total size on the card typically never exceeded appx 20MB.  After 2 months and 10 days, my Airsense 10 SD card is storing about 250MB.

Does anyone know if the Airsense 10 CPAP series machines have a cutoff time or size beyond which they will prune the data on the SD card?

[jaswilliams]

The machine will keep going until the card is full then prune as far as I know certainly more than a year

[SarcasticDave94]

I'd be thinking the same as Jason. It gets full then starts to delete/save new.

[RNeil]

I think the S9 software was from an era when data storage was less dense. The SD card in my S10 is 4 GB, but it is hard to find cards that are less than 16 GB today. After almost a year of use, I have used 1.01 GB and have 2.68 GB free. I know that does not add up to 4 GB.