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Table 6 The pressure produced by different devices

From: Factors influencing nasal airway pressure and comfort in high-flow nasal cannula oxygen therapy: a volunteer study

Flow rate(L/min)

EEP

EIP

HFT-300

H-80 M

Gap of EEP

HFT-300

H-80 M

Gap of EIP

10

0.94(0.46)

1.07(0.57)

−0.03(0.02)

− 0.61(0.58)

−0.55(6.32)

− 0.01(0.31)

20

1.70(0.80)

1.93(0.85)*

0.20(0.55)

−0.08(0.55)

−0.06(0.54)#

0.11(0.53)

30

2.31(0.82)

2.87(1.34)*

0.37(0.59)

0.28(0.54)

0.64(0.67)#

0.17(0.47)

40

3.25(1.19)

4.39(1.88)*

0.66(1.01)

0.96(0.79)

1.54(1.07)#

0.48(0.78)

50

4.47(1.81)

5.71(22.78)*

1.07(1.22)

1.49(1.24)

2.25(1.30)#

0.72(0.74)

60

6.01(2.21)

7.40(3.21)*

1.16(1.09)

2.27(1.41)

3.12(1.45)#

0.62(1.30)

  1. Values are median (IQR), * represents P < 0.05 compared to EEP of HFT-300 at the same flow rate, # represents P < 0.05 compared to EIP of HFT-300 at the same flow rate