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Oxygen Cylinder Duration Times Size & Flow Rate

O2 Cylinder Delivery Chart:

Use Times (Shown In Hours)

Flow Rate:11.522.53456

Pulse Dose5.
Continuous Flow1.

Pulse Dose8.
Continuous Flow2.

Pulse Dose8.
Continuous Flow2.

Pulse Dose9.757.
Continuous Flow3.

Pulse Dose12.
Continuous Flow4.

Pulse Dose21.
Continuous Flow6.

Pulse Dose34.423.017.213.811.
Continuous Flow11.

This chart is intended to be used only as a guide.

O2 Cylinder Physical Sizes

  • E Cylinder: approx length 25"
  • D Cylinder: approx length 17"
  • C Cylinder: approx length 11"
  • M9 Cylinder: approx length 15"
  • M6 Cylinder: approx length 12"
  • M4 Cylinder: approx length 9"

These are approx cylinder lengths. Size may vary slightly by manufacturer:

Want to know more about Pulse-Dose?
Read about Pulse-Dose versus Continuous Flow Oxygen Delivery Systems and how they work:
How Pulse Dose Oxygen Delivery Systems Work

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