Room air contains approximately 21% oxygen. This is normally enough for an individual to maintain adequate blood oxygen levels through normal respiration.

Oxygen can be delivered to the patient through tubing attached to a nasal cannula (prong), face mask, a face tent or a tracheostomy mask. Dräger provides a comprehensive range of oxygen delivery products for different applications, each designed to treat a specific range of disorders resulting in hypoxia.

For various reasons, however, some medical conditions result in lower oxygen saturation levels in the tissues of the body (hypoxia). In many cases, this can be overcome by supplying oxygen to the patient at a higher concentration than the ambient air contains. In addition, oxygen is often used during and following surgical procedures.