Used in healthcare settings to deliver supplemental oxygen to patients. It is a small, lightweight piece of equipment that consists of a flexible tube with two prongs that fit into the patient’s nostrils. The other end of the tube is connected to an oxygen source, such as an oxygen concentrator or a portable oxygen tank. The primary purpose of the nasal cannula is to deliver a controlled flow of oxygen to patients who may have difficulty breathing or require additional oxygen to maintain adequate oxygen levels in their blood. This is commonly used for patients with respiratory conditions like chronic obstructive pulmonary disease (COPD), pneumonia, or congestive heart failure.