Oxygen Flow Rate and FiO2: Understand the Relationship!

Oxygen, we all need it! We do not need a lot of it under normal circumstances, with 21% being the fraction of inspired oxygen (FiO2) of room air. FiO2 is defined as the percentage or concentration of oxygen that a person inhales.  The air that we inhale on a day to day basis is made up of 21% of ...