I’m thankful that you have come out with a device to help with airway clearance. I am finding the Electro Flo 5000 a good compliment to using the vest product because often times when I’m done with a vest treatment, I can still feel mucous in my lungs. I then use the Electro Flo 5000 to focus where the congestion still remains and thus get even better clearance. This is especially important before going to bed. I also love the portability of this device! I have been bringing my vest on vacations but it’s so cumbersome. It’s really nice to now have an alternative airway clearance device that is both effective and extremely portable!