An oxygen delivery system consists of several components working together to provide supplemental oxygen to patients. These components include:

1. Oxygen Source:

- The oxygen source is the starting point of the oxygen delivery system. It can be:

- Compressed oxygen tanks

- Liquid oxygen tanks

- Oxygen concentrators (for generating oxygen from ambient air)

2. Pressure Regulator:

- The pressure regulator controls the flow of oxygen from the source and reduces the high-pressure oxygen to a usable, lower pressure.

3. Flowmeter:

- The flowmeter regulates and measures the flow rate of oxygen delivered to the patient. It displays the oxygen flow rate in liters per minute (L/min).

4. Humidifier:

- The humidifier adds moisture to the oxygen gas to prevent dryness and irritation in the patient's respiratory tract.

5. Oxygen Tubing:

- Flexible plastic tubing carries the humidified oxygen from the humidifier to the patient.

6. Oxygen Mask or Cannula:

- The oxygen mask or cannula is the interface that delivers oxygen to the patient's respiratory system.

- Oxygen Mask: Covers the patient's nose and mouth or only the mouth, providing higher oxygen concentrations.

- Nasal Cannula: Fits into the patient's nostrils, providing lower oxygen concentrations.

7. Reservoir Bag (optional):

- Some oxygen delivery systems include a reservoir bag that stores oxygen, ensuring a continuous supply during inhalation and exhalation.

8. Oxygen Sensor or Monitor (optional):

- In certain medical settings, an oxygen sensor or monitor may be used to continuously measure and display the oxygen concentration delivered to the patient.

9. Alarms and Safety Features:

- Oxygen delivery systems may include alarms to alert healthcare professionals in case of low oxygen levels or system malfunctions.