A nasal cannula is a medical device used to deliver supplemental oxygen to individuals who need increased oxygen levels in their blood.The cannula is a small, flexible tube with prongs that are inserted into the nostrils. It is connected to an oxygen source, typically an oxygen concentrator or a cylinder, which delivers a continuous flow of oxygen to the patient .there are different types, including standard adult nasal cannulas, pediatric cannulas, and high-flow cannulas designed for individuals who need higher oxygen flow rates

It’s important to follow the manufacturer’s guidelines for cleaning and maintenance. Typically, you can clean the cannula with mild soap and water. Replace it if it becomes damaged or if there are signs of wear..