Is a manometer necessary for accurate pressure setting?

[oneantonee]

I was told in the past that the CPAP machine should not only be set at Xcm, but that value should also be verified by a manometer? Is this still recommended or do current machines have an accuracy that does not necessitate this?

If it is still necessary, is it also then necessary to check with whatever humidifier you use attached? How much can a humidifier change the pressure, if at all?

Furthermore, if one is using APAP, which varies the pressure, within a given range, is it even necessary to use a manometer to verify the settings, or is it all relative anyway?

Antonio

[dsm]

Any machine with a pressure sensor does not require a manometer.

The S7s, S8s, Remstars with cflex, almost all modern AUTOs, the current PB range, most Bilevels - all have pressure sensors so can sense the pressure at the exit port.

The PB range go a step further by having an inner pressure sensing tube inside the standard air tube. These machines (all PB3xx models, all PB4xx models) sense the pressure at your face (it does differ between the exit port and the face mask).

But to be honest, it doesn't really matter if the machine is + or - 1 CMS. It is the results that are important.

Cheers

DSM

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CPAPopedia Keywords Contained In This Post (Click For Definition): cflex, manometer