I have been using the Baxter twice a day for 6 months along with the AerbiKa and while they aren't my favorite times of the day, they are helpful. The Baxter specialist will program the settings for how much inflation the vest delivers during each of the 3 parts of the cycle and the vest adjusts for each individual. Its not a one size fits all! It is very helpful at mobilizing the secretions I don't know are there but just like the Aerobika, good instruction produces best results!