Fraction of Inspired Oxygen (FiO2) - University of Louisville
https://louisville.edu/medicine/departments/medicine/divisions/gimedicine/physician-resources/calculators-and-tools-files/fraction-of-inspired-oxygen-pdf
Fraction of Inspired Oxygen (FiO2) for a nasal canula and a Venturi mask are given in the tables below. For other oxygen delivery systems, such as masks, tents, there is more oxygen that "blows by" or is lost, therefore higher flow rate setting on the oxygen tank are needed to achieve the same FiO2.
DA: 29 PA: 92 MOZ Rank: 16