Oxygen therapy provides oxygen to patients through various sources and delivery systems. The amount of oxygen delivered is determined by the flow rate measured in liters per minute, which varies by patient condition and method of administration. Common delivery systems include nasal cannulas, face masks, tents, and catheters. Nasal cannulas are inexpensive and comfortable but deliver a lower concentration of 24-45%, while non-rebreather masks deliver the highest concentration of 95-100%. The appropriate delivery system depends on the patient's needs, comfort, and age.

1. OXYGEN THERAPY JEENA AEJY

3. CYLINDER or TANK

8. NASAL CANULA OR NASAL PRONGS

13. FACE MASKS Oxygen masks is fitted carefully to avoid leakage of O2. Shouldn’t be too tight

22. The colour of the device reflects the delivered oxygen concentration: 24%: blue ; 28%: white ; 31%: orange ; 35%: yellow; 40%: red ; 60%: green

27. In children: OXYGEN TENT

29. THE END