Many patients receive a prescription for oxygen, but are not provided an explanation of what equipment is necessary to meet their oxygen needs.  Purchasing the wrong type of machine can lead to poor outcome, frustration, and unnecessary returns. It is important to know the difference between pulse dose and continuous flow oxygen and which is the right choice for you. 

 

Pulse Dose Oxygen

Pulse dose machines deliver oxygen only when the patient inhales. The machine senses an inhale and releases a bolus (burst) of oxygen at the beginning on inhalation. These machines deliver oxygen on demand, are smaller and lighter, have longer battery life, and are the most portable concentrators on the market, making them perfect for travel. 

This type of machine is best for patients who:

• Need oxygen primarily while active or traveling 
• Can effectively breathe through their nose
• Can consistently trigger the machine
• Use settings that can be safely supported by pulse technology

Common benefits of pulse technology:

• Easy to carry
• More freedom and mobility
• Better battery performance
• Easier for air travel and day to day use

 

Continuous Flow Oxygen

Continuous flow machines deliver oxygen constantly regardless of whether the patient is inhaling or exhaling. The machine delivers oxygen nonstop, which means that they are larger and heavier, have a shorter battery life, and are louder than pulse units.

This type of machine is best for patients who:

• Require oxygen while sleeping
• Need higher oxygen levels
• Can't consistently trigger pulse delivery
• Are mouth breathers
• Have severe respiratory conditions 
  • Using with a CPAP or BiPAP machine
• Were prescribed continuous flow by their physician

Common benefits of pulse technology:

• Consistent oxygen delivery
• Better support during sleep
• Better for higher oxygen demands
• Delivers oxygen regardless of breathing pattern

 

It is important to understand the differences between continuous flow and pulse delivery prior to purchasing a machine to ensure your machine will support your oxygen needs. If you are unsure which option is best for you, talk to your doctor before making a purchase. With the right oxygen concentrator, you can get your freedom back and live more comfortably.