Nasal Oxygen Cannula for Safe and Comfortable Oxygen Supply

The nasal oxygen cannula is one of the most widely used respiratory consumables for low-flow oxygen therapy in hospitals, clinics and home care settings. Lightweight, comfortable and easy to operate, it delivers oxygen directly into the patient’s nostrils through two small soft prongs connected to flexible tubing.

Designed for patients with spontaneous breathing, it is suitable for mild to moderate hypoxemia, postoperative recovery, chronic respiratory disease management and long-term home oxygen support. Its common flow range for adults is 1 to 6 litres per minute. When the flow exceeds 4 L/minute, humidification is usually required to prevent dryness, irritation or bleeding of the nasal mucosa.

Compared with oxygen masks, the nasal oxygen cannula brings obvious advantages. It does not cover the mouth, so patients can speak, eat and drink normally during oxygen inhalation. Soft, non-irritating materials reduce pressure marks on ears and nose for extended use. Disposable types help lower cross-infection risks in clinical environments.

It is important to note that the nasal oxygen cannula cannot meet the oxygen demand of severe respiratory failure patients. For those cases, high-flow nasal cannula systems or breathing masks are alternative choices. Proper training for users and regular inspection of tubing for kinks or leaks are essential to guarantee stable oxygen supply and safe treatment.