Training tools for inhalation devices: the need for more sophistication

Frequent inhaler technique training is recommended, but methods of assessing a patient’s
existing technique are subjective. Recent publications in this journal1,2 have highlighted how
the aerosol inhalation monitor (AIM) and IN-Check device provide useful information about
metered-dose inhaler (MDI) and dry powder inhaler (DPI) use. However, more sophisticated
generic evaluations are possible; for example, useful data can be obtained by recording and
interpreting inhalation profiles in the same fashion as a flow-volume loop.