The network provider in your home area might, for some reason, be refusing the device's registration request, which is why it's showing that it has no signal. You can be right next to a cell tower, but if the network doesn't let your device register it will show a No Service condition.
If you had a serious mask leak issue it could cause your AHI to go up. For example, if you use nasal pillowsor a nasal mask and your mouth was open a good portion of the night, you would have severe leak problems that would affect your AHIs. Severe enough and the machine can't compensate.
I would never buy a CPAP off Craigslist. You should get it through a sleep center that conducts the titration study and sets the machine up for your ideal settings. Fiddling around with the settings youself is not a recipe for effective treatment.
Weird. I have a Resmed Airsense 10. When I scroll down to select "Sleep Report," all I get is text telling me to log into myair online. I do not have an Essentials setting in my menu.
The other concern, besides mineral build-up, is that plain tap water or bottled spring water can have bacteria in it. It's fine for drinking because your stomach acid will kill anything, but you don't have acid in your nostirls and sinuses. Breathing in water vapor with bacteria may cause a respiratory infection, if the right kinds of bacteria are present. People on this forum have reported using spring water and getting respiratory infections, chest pains, and nasty mucous discharge.
When I started using my APAP I had to decide which mask type was best for me. I felt the full-face mask was too bulky, and the nasal pillows' headgear seemed way too flimsy, like it would slip off. So I settled on the nasal mask. You might try switching to a nasal mask or full-face - they're much more secure.
Thanks very much. My doctor originally ordered an in-lab sleep test, but insurance denied it as "not medically necessary" and only approved the at-home test.
Thank-you for the response. I can understand if xPAP therapy alone doesn't reduce AHIs enough and additional therapy (whether it be oral appliance, positional, surgery, etc) is required to bring AHIs down to a normal range. But if the sleep data is indicating that AHIs are in the range of 1-2/hour every night on APAP therapy, what would additional therapies do that the APAP isn't?
Also note - you don't put a tube down your throat when using a CPAP. You wear a mask, or perhaps use nasal "pillows."
Thanks, wiredgeorge. I have found that I'm not getting up in the middle of the night like I used to. I was hitting the head once ever other night or so, now I go several nights in a row without doing that. I've gone as much as a month without getting up. I don't think it has to do with difficulty breathing against the machine - when I turn it on it takes less than a minute for me to adjust. I also don't think it's time for adapting - I've been using the machine for 6 months now, and pretty much adjusted after the first night.