There is now a vast range of inhaler devices available for the management of asthma. Clear explanation must be offered to new users of such devices, as well as attempts made to improve inhaler technique in experienced users. These activities can be very time consuming for the health professionals concerned. A further problem is encountered when attempting to demonstrate the use of such devices to those with a poor understanding of English. One solution is the use of multi-media computer systems, which have the advantage over video in being far more flexible and allowing patient interaction. King’s College London have produced a touch-screen multimedia systems which counsels patients, in their selected language, using a combination of video, text, graphics and audio presentations. This multi-centre randomised trial builds on previous feasibility studies. It consists of a randomised controlled study in which English and non-English speaking patients are given information on inhalers, one using conventional methods alone, the other using conventional methods in combination with the multimedia system. Outcome measures include "blind" rating of inhaler administration technique between groups, acceptability of multimedia method and satisfaction with information provision. Cost-implications of each intervention will be compared. Pilot sites will be located in both primary and secondary care settings.