Comparison of Actual Performance in the Flow and Fraction of Inspired O₂ among Different High-Flow Nasal Cannula Devices: A Bench Study

Figure 1

HFNC devices’ connection. (a) Connection with an oxygen analyzer. (b) Connection with a flow analyzer. (c) Adapter. (d) Adapter connected to cannulas. (e) Adapter connects cannulas and VT PLUS.

(a)

(b)

(c)

(d)

(e)