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Airways disease is a frequent problem poorly recognised in older people. Many have reversible airway limitation and do not receive appropriate therapy. As in younger patients, pulmonary function tests are essential as a baseline and in relation to formal trials of treatment in both the diagnosis and management. Preferably, the assessment of all patients with airflow limitation should include a corticosteroid trial to correctly identify all patients who need long term prophylactic therapy. Many older patients have difficulty using the metered dose inhalers and the addition of volume spacer devices, though cumbersome, has many further advantages. In some patients, airflow limitation may be complicated by the presence of cardiac failure, arrhythmias and arterial hypoxia, and these problems also need to be reviewed.