Excessive mucus in the lungs not only makes breathing more difficult, but if allowed to build up leads to infection and lung damage. Stressful and strenuous coughing may help to clear the obstructions, but this is not pleasant for the person concerned, or relatives.

Traditionally, physiotherapy has been one of the few ways to gain help - the Flutter now brings a new option to the problem of clearing mucus congestion. Regular sessions with the Flutter of between 5 and 15 minutes produce a beneficial effect, equivalent to that delivered by physiotherapy techniques.