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Venturi mask (Hudson mask, nonrebreathing mask)

Deliver a fixed concentration of oxygen independent of the flow rate by entraining air in direct proportion to the flow rate of 100% oxygen. They are high-flow masks, each designed for a specific fiO2 of 0.24, 0.28, 0.35, 0.40. A 100% nonrebreathing mask delivers only about 65% oxygen [2]

Related

face mask

General

device (medical device)

References

  1. Harrison's Principles of Internal Medicine, 13th ed. Isselbacher et al (eds), McGraw-Hill Inc. NY, 1994, pg 1204
  2. Sim MAB et al. Performance of oxygen delivery devices when the breathing pattern of respiratory failure is simulated. Anaesthesia 2008 Sep; 63:938. PMID: 18540928