We are taking an overseas trip and I purchased a new Transcend Auto machine thinking it would be easier for the travel. Have tried to use it but it requires me to breath in much harder which is uncomfortable and also is noisy when I inhale. We checked and the pressure is set to the same level as my regular machine - but with that machine I can just breathe normally and there is virtually no sound. I asked a local dealer and they just said smaller machines don't work as well in terms of generating air but I had purchased it online and they did not handle Transcend machines so maybe it was not a fair question to ask them. We called the company and all they did is send us instructions for adjusting the pressure.
So - my question is does this sound like something that might be fixed by adjusting the pressure? If so would I increase it to provide more airflow? (My current machine is set at 7.0 and ramps up from 4.0 I think).
Or am I just out the money I spent on the machine because as it stands I would much rather lug my primary machine along than try to sleep with this one the way it is working now.
It would help if you told us what your current machine is?
I'm not familiar with the Transcend, but I don't think it has any exhale relief and your other machine probably does. That's most likely the difference. However, If the Transcend does have exhale relief then turning it on will make a difference.
Your pressure is only 7 to start, perhaps the new machine is a little low and/or the hose is a little more restricted.
You might try the simple test of upping your pressure to 9 or 10 and see what that does.
I don't think the lack of EPR is LIKELY to be the reason for trouble inhaling (many of us turn off EPR anyway -- personally I can't tell the difference.)
For me, having the machine set below 8 means it feels like I am breathing through a small straw. Lot's of people report something similar at low settings.
Sleep study AHI: 49 RDI: 60 -- APAP 10-11 w/AHI: 1.5 avg for 7-days (up due likely to hip replacement recovery)
"We can all breathe together or we will all suffocate alone."