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How much pressure is generated by Nasal High Flow?


Research suggests when all things are treated as equal NHF generates approximately 1 cmH2O of pressure for every 10 liters of flow. 

For the Airvo 2, that means roughly a pressure level of 6 cmH2O at the maximum flow rate.

Ritchie et al. 2011; Parke et al. (Aug) 2011Groves and Tobin. 2007
 

Average Airway Pressure



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