CO2 Exhalation

- 2   Liters/min: 28-33%

​- 3   Liters/min: 24-47%

- 4   Liters/min: 48-53%

- 5   Liters/min: 54-69%

​- 6   Liters/min: 70-75%

- 8   Liters/min: 76-86%

- 10 Liters/min: 87-95%​

>15 Liters/min: 95-99%

And always evaluate efficacy of O2 therapy with a pulse oximetry or arterial blood gas

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