@patti55 , I am sorry to hear about your infections. I have a smartvest and I used it for about 6 months. I did not feel it helped me to bring up mucus, so I stopped it. Other people do find the vest helpful. I never stopped getting an infection for almost two years. Now I am doing well and only nebulize in the evenings and do autogenic drainage in the mornings. To me it was my eosinophilic asthma that was not controlled, even though my eosinophilic level is just a little elevated.
Do you have other conditions besides BE? To me I would try anything to stop the infection. To me, vests should work similar.
Hope you feel better.
Ling