Apparatus for producing oxygen for medical use; Oxygen enrichment apparatus for medical use; Oxygen sensors for medical use; Therapeutic apparatus for the administration of oxygen (medical); Oxygen masks for medical use; Tubing connectors for medical use; Medical apparatus for assisting breathing; Respiratory breathing apparatus for medical use; Ventilator breathing apparatus for artificial respiration; Gas supply apparatus for hospitals; Apparatus for the control of medical gases; Apparatus for the supply of medical gases; Filters (medical) for gases; Portable pump installations for gases (for medical use)

Maintenance, installation and repair of industrial apparatus and instruments; Maintenance and repair of gas installations and equipment; Repair, maintenance and installation services for charitable purposes; Construction services for charitable purposes