In terms of symptom relief achieved from inhaled bronchodilators, 31 of the 53 (58%) patients using a pMDI alone felt able to identify a ‘clinical benefit’ in comparison to 4 of the 12 (33%) DPI users. Although most DPI users (10/12) had rated their inhaler as easy to use, 50% were ‘unsure’ as to whether they received any benefit.