Thanks a lot for the reply.

It says 'Total Usage Hours: 0' in the app. I purchased it at cpap.com, whom I've found to be pretty solid.

I also watched a couple of unboxing videos and it looked to me like their units weren't sealed in any way, either. So maybe that is just how they are shipped?

I just received my ResMed AirSense Mini. Everything seems to be in order except...the packaging. Nothing is sealed. No sticker on the outside box preventing it from being opened. No sealing on the inner liner containing the unit itself. I just popped everything open. And I could put it all back toge...