The Pharmaceuticals Oxygen Equipment Tubes consist of a long tube that leads to the concentrator or tank and a nasal cannula that binds to the tubing and provides oxygen to the nostrils. A nasal cannula is a tube used to provide supplementary oxygen or additional airflow to a patient or person in need of respiratory assistance. The other end of the tube is attached to an oxygen source, such as a portable oxygen generator or a hospital wall link, using a flow meter.