What i do is, I have a monkey on a stationary bike, that runs an air pump to run the nebulizer. If I want more air I just have to feed the monkey more. One time I didn't feed the monkey and missed some treatments because he died. I had to get a new monkey. That's probably not much help to you though... Might want to try a different animal like a frog. Yeah that ought to work, a nice green frog. Bugs are a lot cheaper than monkey food. On a serious note, the portable jawnskis are a waste of money from my experience with them. But then again so is the Pari Pro neb ultra... none of them where designed to take the abuse we put them up against. I'm going back to the drawing board with mine.. probably going to get 3 frogs and run them in parallel.