what is the difference between nasal cannula and high flow nasal cannula?
Heat and humidified high flow nasal cannula or as most call it, Hi Flow Nasal Cannula (HFNC), isn't just a standard nasal cannula cranked up to very high flow rates. It actually takes gas and can heat it to 37 o C with a 100% relative humidity and can deliver 0.21 – 1.00% fi02 at flow rates of up to 60 liters/min.