CmH2O
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Revision as of 00:42, 7 February 2012 by SuperSleeper (talk | contribs)
cmH2O (centimeter of water) is a unit of measurement used to measure CPAP air pressure, typically via a manometer. It is defined as the pressure exerted by a column of water of 1 cm in height at 4 °C (temperature of maximum density) at the standard acceleration of gravity.
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