While many terms describe Nasal High Flow Therapy (aka HFNC), one stands out.
Optiflow NHF therapy.
Optiflow Nasal High Flow therapy provides respiratory support to your patients by delivering heated, humidified air and oxygen at flow rates up to 70 L/min via an Optiflow nasal cannula and a system such as the Airvo 2 or Airvo 3.