My Optometrist's office sells glasses. I don't think the issue is black and white. The MDs probably make more money out of repeat visits than they would off the equipment. At some level, you have to trust your doctor. If you don't, you should probably try to find a different doctor if you're able to...

Another thought: if the data on your SD card is changing every time you plug it into your computer, you might also want to do a virus scan on your computer. It is possible that a virus is trying to write itself to the SD card and thus causing the CPAP machine to think the card is invalid. There are ...

This is not normal, but it can happen if other data is present on the card (for instance if you put the card into a camera and take a picture). After you click on "yes", does the card work, or does it come back with more error messages?

Does Benadryl make him drowsy -- that is over the counter and would save a trip to the doctor if he is able to take it. Just a quick comment: I have a friend who is a geriatrician who warns against giving Benadryl to the elderly. It is known to make some older people "crazy" (as in completely losin...

I agree. Even with its quirks, I'd have the S9 over any other machine. It really does provide better therapy for me. Others find the System One works best for them. YMMV. Actual therapy trumps quirky data. You worked on the data skew issue a lot last spring. What's your take on what I present in my...

My understanding is that the way you lose therapy with mouth leaks is that the therapy pressure escapes out of your mouth so that the OSA worsens from the lack of therapy pressure. Machines can compensate for leak up to a point, but mouth leak is often too severe for a machine to compensate for. I ...

Mouth leak is bad news, so make sure it isn't that. http://www.resmed.com/us/clinicians/compliance_and_efficacy/the-mouth-leak-cycle.html?nc=clinicians Hi jnk, Thank you for the link. I don't know how to detect if I have a mouth leak. My mouth is not dry in the mornings. When I have mouth leaks, I ...

The analog to pressure in electricity is voltage. The analog to flow rate is current. The relation in terms of airflow is probably not as nicely linear as in electricity, but the basic formula is V=IR. This means I = V/R. In other words current is equal to voltage divided by resistance. For the airf...

So, I have left the setting off after some experimenting with it early on, and have never felt the need to use it. I agree with you in general. The one thing I'll say is that the breathing assist that EPR gives me did help when I was congested following a cold last week. I turned up the EPR to 3 on...

Look at the graphs provided with the explanation of the Easy Breathe with EPR technology. The relief applies only at the beginning of an exhalation, not during the entire exhalation. The latter would be BIPAP. When I look at the graphs it looks to me like the pressure is low until you start to inha...

It has no effect on the pressure during inhalation, and no effect for most of the time that one exhales. Are you sure about this? To me, it definitely feels like it's lowering the pressure for the whole time that I exhale, and then increasing it on the inhale. I actually changed my EPR speed to fas...

I take half a melatonin (1.5mg) before going to sleep and then take the other half if (mostly when) I wake up in the middle of the night. I think this prevents me from staying awake in the middle of the night. Since going on CPAP, I seem to only wake up once a night, so this covers all the times I h...

Shouldn't it be this?

http://naturalsciences.org/microsites/e ... booby.html

To give more details: the leak number in the advanced info that Uncle Bob explained to you is the 95th percentile leak number. This means that 95% of the night, you were under this rate, so it's a size, not number of leaks. The number is reported in liters/minute. If you want to count the number of ...

What "spam button"? Once you've been here 3 months and you have 50 posts, you get a spam button that you can use to report a post as spam. On this board, that deletes the post. I've been wondering if somebody's been doing that on this board. Calist is not 100% credible, but this is somewhat believa...