Major Shift in Demand For Oxygen Therapy Devices – New Study For 2021 By John Fraser and Kamran Zamanian, Ph.D., iData Research The continual administration of medical oxygen, known as oxygen therapy, is used to treat a variety of medical conditions, such as cancer, cystic fibrosis, and chronic obstructive pulmonary disease (COPD). Generally, oxygen therapy devices are used to treat patients who can no longer receive adequate volumes of oxygen through regular breathing and those who require higher concentrations of oxygen. The long-term driver of sales for these devices is the movement away from traditional cylinder-based methods of oxygen delivery and toward portable concentrating technology.