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Centimetre of water (cmH2O - Water), pressure

A centimeter (centimetre) of water or cm H2O is a less commonly used unit of pressure. It is used to measure the central venous pressure, the intracranial pressure while sampling cerebrospinal fluid, as well as determining pressures during mechanical ventilation or in water supply networks (then usually in metres water column). It is also a common unit of pressure in the speech sciences.

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