This is the variety of oxygen with high purity that is used in hospitals and healthcare centres. The medical-grade oxygen is used as a life support gas. Isolating the oxygen from the remaining gases in the atmosphere using an air separation unit and removing the moisture and impurities from the oxygen is what elevates regular oxygen to medical oxygen making it safer for human use. Medical oxygen is used in hospitals, mobile healthcare units, deep-sea diving, mountaineering and palliative care. Sterling supplies medical oxygen both in gaseous and liquid in various levels of purity depending on the application.

• Oxygen Aviation Grade:This is a gas with low hydrocarbons, halogens and moisture levels. Aviation grade O2 is mainly used as breathing oxygen in aircraft. It is used both in civil aswell as military aircraft. It is a colourless, odourless and non-flammable gas with oxidizing properties.
• Oxygen Laboratory Grade: High purity oxygen is used for operating sensitive equipment such as analyzers. This kind of oxygen finds use in chemical synthesis and production of optical fibre.
• Oxygen for Biotechnology: Food grade oxygen is the one combined with carbon dioxide and nitrogen for packaging applications and fermentation. There is an increasing demand for biological products from fermentation processes and oxygen enrichment can enhance the bioreactor capacity and performance without the need for major capital equipment. Introducing pure oxygen can shore up operating production without associated gas foaming and flooding