1. All patients should have home oxygen assessments carried out by a home oxygen assessment service that includes appropriately trained staff and appropriate equipment.

2. All patients being assessed for home oxygen should undergo a risk assessment that includes assessment of individual and household member smoking status, and other household risks of fire, trips and falls.

3. All patients initiated on home oxygen should have appropriate education and written information provided by a specialist home oxygen assessment team.

4. Patients with advanced stable cardiorespiratory disease who have resting saturations on air that meet the qualifying criteria should be referred for a long-term oxygen therapy (LTOT) assessment.

5. All patients being considered for LTOT should undergo serial blood gas assessments, by the home oxygen assessment service, when stable to confirm both the need for and tolerability of LTOT.

6. Review, reassessment and withdrawal All patients started on LTOT should be followed up with blood gas assessment within 3 months of initiation of therapy; this includes those patients who are discharged home from hospital on LTOT for the first time. All patients who continue on LTOT should be monitored at least on an annual basis by a home oxygen assessment service. All patients who are identified as no longer requiring any form of home oxygen should have this withdrawn.

7. Short burst oxygen therapy (SBOT) should only be offered in the context of cluster headache. SBOT should not be ordered for patients with chronic cardiorespiratory disease.

8. Nocturnal oxygen therapy (NOT) Patients with optimally treated cardiac failure, who are not eligible for LTOT, should only be offered NOT if there is evidence of sleep disordered breathing causing daytime symptoms. Patients with chronic hypercapnic respiratory failure with nocturnal hypoxaemia, who are not eligible for LTOT, should only be offered NOT in conjunction with non-invasive ventilation (NIV).

9. Ambulatory oxygen therapy (AOT) Patients not eligible for LTOT should only have AOT ordered to facilitate pulmonary rehabilitation or to improve mobility after appropriate formal assessment that includes an exercise test. Patients on LTOT, who are mobile outdoors, should only be offered AOT if this allows them to achieve 15 hours/day compliance with LTOT and/or improve capacity to undertake outdoors activities.

10. Palliative oxygen therapy (POT) can be considered as a trial for patients with hypoxaemia (saturations <92% on air) with refractory dyspnoea due to life-limiting disease that has not responded to opioids and non-pharmacological measures.