Transcend EZEX Portable CPAP Machine with Exhale Pressure Relief
[503066]

I had used this for the first time on a road trip to California and was a bit disappointed in the noise level. It was not what I would consider an quiet unit but then again I have sensitive ears. Also, I found the ramp function really didn't provide much of a pressure reduction at start up. (With clarification it does actually work you just have to press the button as it cleans out the machine)

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