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Oxygen Cylinder Comparison Guide

There are several types of home oxygen therapy options.

Each option is designed to meet a variety of patient needs: ambulation, dosage delivery and other needs. Which oxygen equipment patients receive is dependent on what their physician prescribes. Some people need oxygen therapy only when they exercise or while they sleep. Others need to use oxygen around the clock. We hope this Oxygen Cylinder Comparison Guide can help patients and medical professionals appropriately find the best oxygen equipment for the patient's therapy.


Here are some considerations to keep in mind when looking at oxygen cylinders for treatment:

  • Many oxygen cylinders are very lightweight and work great for both active and less active patients.
  • Oxygen cylinders are most often used in conjunction with an oxygen concentrator. The "home-fill" oxygen systems allow small, portable cylinders (i.e. M-6's, M-9's) to be re-filled directly from oxygen concentrators.
  • Cylinders come in various sizes. The size of the cylinder determines the volume of gas contained and the length of time before the oxygen in tank runs out.
  • Oxygen cylinders come equipped with a regulator that controls the flow of oxygen to the patient. If the regulator is used without an oxygen-conserving device, the flow of oxygen to the patient will be continuous. If the regulator has a conserving device built in, the flow of oxygen is released when the patient inhales and is cut off when the patient exhales.


 Below you will see a comparison of 6 oxygen cylinders with specifications (i.e. weight, height). We also have cylinder durations listed. Our M-60 cylinder is our heaviest, but it's only given to patients as an emergency.


Oxygen Cylinder Comparison Guide



  • Height: 11.6 in
  • Capacity: 164 liters
  • Diameter: 3.21 in
  • Weight: 2.2 lbs.
  • Comes with carrier bag


  • Height: 7.68 in
  • Capacity: 165 liters
  • Diameter: 4.38 in
  • Weight: 2.8 lbs
  • Comes with carrier bag


  • Height: 10.7 in
  • Capacity: 255 liters
  • Diameter: 4.38 in
  • Weight: 3.7 lbs
  • Comes with carrier bag


  • Height: 16.5 in
  • Capacity: 425 liters
  • Diameter: 4.38 in
  • Weight: 5.3 lbs
  • Comes with carrier bag



  • Height: 24.9 in
  • Capacity: 680 liters
  • Diameter: 4.38 in
  • Weight: 7.9 lbs
  • Comes with wheelchair bag or cart



  • Height: 23.5 in
  • Capacity: 1738 liters
  • Diameter: 7.3 in
  • Weight: 22.3 lbs
  • Not portable- emergency back-up tank


Click here to see approximate tank times.

Click here for the PDF version of the Oxygen Cylinder Comparison Guide.