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. 2019 Dec 30;9(4):213–220. doi: 10.4103/2045-9912.273959

Table 6.

Peak expiratory Re

Gas mixture Peak expiratory flow (L/min) ReETT at peak expiratory flow
Medical air 5.7 2439
Heliox 9.3 1415
Nitrous oxide 5.5 3292
Argon 5 2556
Xenon 3.1 3649

Note: ETT: Endotracheal tube; Re: Reynolds number.