Oxygen Delivery by Device



Nasal Cannula 

• Indicated for low-flow, low-percentage supplemental oxygen. 

• Flow rate of 1-6 Umin. 

• Delivers oxygen. 

• Pt can eat. drink, and talk. 

• Extended use can be very drying; 



Simple Face Mask 

• Indicated for higher percentage supplemental oxygen. 

• Flow rate of 6-10 Umin. 

• Delivers oxygen. 

• Lateral perforations permit exhaled CO2 to escape. 

• Permits humidification. 



Nonrebreather Mask 

• Indicated for high percentage FiO 

• Incorporates use of reservoir bag. 

• Flow rate of 10-15 Umin. 

• Delivers up to 100% oxygen, 

• One-way flaps prevent entrainment of room air during inspiration and retention of exhaled gases (namely CO,) during expiration. 



Venturi Mask (venti-mask) 

• Indicated for precise titration of percentage of oxygen. 

• Flow rate of 4-8 Umin. 

• Delivers 24%—60% oxygen. 

• Uses either a graduated dial set to desired FiO2 or colored adapters selected to deliver desired FiO 



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