Applications of medical nitrogen in the healthcare environment may include the following:
In cryopreservation for the long-term preservation of blood, blood components, other cells, body fluids or tissue samples.
In cryosurgery for minor surgical procedures in dermatology.
As a component in many gas mixtures.
As a displacement medium for sterile equipment, a non-oxidising displacement medium in pharmaceutical vials and as a propellant in pressurised aerosol dispensers.
As a source of pneumatic pressure to power gas-operated medical devices.
As a coolant for carbon dioxide surgical lasers.