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Algorithm for the selection of the humidification device.
ICU - intensive care unit; AA - artificial airway; NIV - non-invasive mechanical ventilation; VT - tidal volume; HMEF - heat and moisture exchanger with filter.
Source: Adapted from: Branson RD. Humidification for patients with artificial airways. Respir Care. 1999;44(6):630-41.(50)
