I travel to the same place on business every week. Instead of lugging a CPAP through airports twice a week, with my doctor's encouragement, I got a second machine that I keep at the work city. At home, I have a Resmed S8. The remote machine is a GoodKnight 420G. Both have the associated humidifiers. I have Swift II masks with each machine, although I just got an Opus 360 I like and I have been transporting that city to city each week. Because of the problem I am going to describe, I recently had both machines professionally checked and they are putting out right at my prescribed pressure of 11. I backed up those checks with an inexpensive hand-held CPAP pressure checker that I got from a CPAP website. I wanted to make sure the addition of the humidfiers did not change things. With the humidifiers hooked up, I got the exact same reading on both machines. EPR is off on the S8 and ramp is off on both.

Here's the problem: With the S8 and either mask, I feel like I am getting good pressure and breathing is easy. With the 420G and either mask, I feel like I have to struggle to inhale. What could cause this? One DME supplier I talked to told me that different machines can have different levels of pressure required to exhale, depending the size of the blower motor, but inhalation should be the same on any two machines that are set at the same pressure. But that is not what I am experiencing. This is a real problem for me. Any help would be appreciated.

its been my experience with different CPAPs at the same pressure that some need more effort to breathe out and less to breathe in, and others are more even for breathing in and out


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respironics comfort gell mask,resmed S6 lightweight CPAP, pressure 10 no humidifier
NO DOCTOR EVER ASKED ME IF I SNORED