Hi! I received a machine, tubes and vest via a prescription from my pulmonologist and paid for through Medicare. It all is supplied through Respironics. I’ve never had any problems with it. Many others on this thread have varied experiences with this intervention, but I have a chronic, dry cough, with very little sputum and I find this intervention helpful. It helps to bring up mucus. If your husband brings up mucus readily, I don’t think he would need something like this but it’s always best to check with his doctor. Day by day I enjoy and am grateful for something. Today, it was being able to volunteer for a few hours at our local hospital gift shop. Other days, it may be a squirrel running by or seeing the sun. Being grateful…