Kohkie - You talked me into it . I'm going to get those filters. You are correct, the white fine particle filter does advertise HEPA. I too get a clogged nose alot of times and it could be the allergens that could make it through the fine dust filter. Thanks for the tip! I have a manometer so I can ...

I've been on a CPAP for almost 4 months now. I have had problems with one nostril being stuffed for many, many years. I used to sleep on my side, and the side of my nose closest to the pillow would always be the one stuffed up. Even when I slept on my back, one side or the other would stuff up. I p...

The device is FLEX capable (Bi-Flex) and it is turned off. If I turn it on, it's much worse, as expected. I have RISE off. So, no flex, and no rise....on both units. Maybe sensors are off or the machines are dirty inside? It's really dusty here (Kansas), and I change my filters regularly; however, t...

I use tap water all the time. You know an effective way to remove any scale buildup? POLIDENT !! Yes, the denture cleaner. If after a couple weeks you get a little bit of mineral buildup, put about four tablets in the reservoir w/ a little bit of water . (enough to cover the bottom and up to the poi...

Yes I have two machines and both exhibit the same behavior. The M series I've had for about 3 years. I purchased the PR System One in October because of this issue, and it too does the same thing. I know what you are talking about with the IPAP not lasting long enough for a bigger breath. Some machi...

I have two Bi-Pap machines. One is an older M series Respironics, and one is a relatively new PR System One. About six months ago, I noticed a "lag" (for lack of better words) fro EPAP to IPAP when taking a breath. Sometimes, IPAP doesn't kick in at all. This happens on both machines. This causes me...