Non-Rebreather Mask Flow Rate Requirements

Oxygen Delivery Requirements for Non-Rebreather Masks

• Non-rebreather masks are designed to deliver high oxygen concentrations (60-90%) but require a flow rate of 15 L/min to function properly 1, 2
• The British Thoracic Society guidelines specifically state that NRBMs are most suitable for trauma and emergency use when used at the required 15 L/min flow rate 1

Alternative Oxygen Delivery Options for 10 L/min Concentrators

• Simple face masks are more appropriate for oxygen concentrators with 10 L/min capacity, delivering 40-60% oxygen concentration 1, 3
• Venturi masks provide precise oxygen concentration control and can be used with flow rates appropriate to the specific Venturi setting 1, 3

Clinical Decision Algorithm for Oxygen Delivery with a 10 L/min Concentrator

• For patients requiring high-concentration oxygen (>60%), consider oxygen cylinder delivery at 15 L/min with NRBM if high concentration is essential 1
• For patients requiring medium-concentration oxygen (40-60%), use a simple face mask at 5-10 L/min 1, 3
• For patients requiring precise oxygen concentration control, use a Venturi mask at the appropriate flow rate for the desired concentration 1, 3