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14.3.2 Autofeed Humidification chambers
When using autofeed humidification chambers the waterbag should be mounted
higher than the max delta P or max PIP being used.
To calculate the approximate height of the water bag use the following
conversion:
1 mbar = 1cm, then add 25cm to the calcutated high for the final hight of the bag.
Mounting the bag lower could allow the ventilator to pressurize the bag and thus
prevent the chamber from filling with water. Also, the bag in return pressurizes the
chamber which could cause high or sustained pressure alarms to be triggered.
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