It's similar to the acapella and Aerobika. Works just like they do. Some people like one more than the other, but all three do essentially the same thing.

oh my i better clear up what i ment well it did'nt do anything for me so sorry

glad to hear it works for you but I can't tell any difference

I use air-physio at least 2 times a day. For me it really helps in the mucous clearance process

forgot to say I had a air-physio