“…Correct inhalation technique is necessary for attaining the full benefit of inhaled medications [18] but inhalers are often used incorrectly unless patients receive adequate instruction [19,28]. Patient education and involvement in treatment decisions can improve adherence to therapy [29] but adherence is likely to decline in patients who have treatment switched without consultation [30,31]. Non-compliance rates already range from 16 to 50% among patients with asthma and COPD, and this contributes to the morbidity, mortality and associated costs of these conditions [6,7].…”