What Is FiH2 (Fraction of Inspired Hydrogen)?
In inhalation research, exposure is often discussed using FiH2 (Fraction of Inspired Hydrogen), which refers to the percentage of hydrogen gas present in the air mixture being inhaled over time. FiH2 offers a more standardized way to describe exposure than flow rate alone, though optimal concentrations, session duration, and frequency are still under investigation. FiH2,…
