. 2020 Jul 29;46:276–281. doi: 10.1016/j.ajem.2020.07.071

Table 2.

The settings of HFNC and NIV

	1–2 h	12 h	24 h
HFNC
Temperature,°C	35 (34–35)	35 (34–35)	34 (34–35)
Flow, L/min	40 (33–40)	40 (36–40)	40 (40–40)
FiO₂, %	40 (40–46)	40 (40–41)	40 (35–42)
NIV
Use of CPAP mode, %	4/13 (31%)	3/13 (23%)	3/12 (25%)
Inspiratory pressure (above zero), cmH₂O	12 (12–15)	12 (12–16)	12 (12–16)
PEEP/CPAP, cmH₂O	6 (6–9)	6 (6–9)	6 (6–10)
FiO₂, %	40 (40–50)	40 (40–48)	40 (40–49)

HFNC = high flow nasal cannula, NIV = noninvasive ventilation, CPAP = continuous positive airway pressure, PEEP = positive end expiratory pressure.