Hi Jim,
In a word, this device is fantastic. The one thing that we have noticed is that when using the percussor, Analisa's cough is much more productive. Even though she doesn't have CF, we would have to really pound on her to try and get a good productive cough that would clear her lungs. With the percussor, it is very easy for her to clear, which in turn means more comfort for her and less chance of infection. My guess is that it is a combination of the pounding that the device produces along with the constant vibration. In other words, the device is constantly creating some type of action that continuously vibrates, pounds, etc., thus always shaking anything in her lungs loose. Great! We love it!
Sincerely, Arnold, Martha and Analisa
Orange County, California
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