does anone know the answer to this? I'd be curious to know as well as it seems to be a very similar technology to the e-flow, I saw sometime back a comparisson chart of particle size and nebulize time for a specific amount of liquid compared between the e-flow, this nebulizer and others and according to that chart it wasn't that spectacular and of coarse the e-flow was on top but if I'm not mistaken it wasn't done by an independtent testing organization or whatever but it was done by Pari which would make it biased and a conflict of interest if you ask me. The reason I'm curious is that I was thinking of getting this nebulizer last year but then came accorss that stuff and decided not to bother but if it's even a slight step down from the e-flow it would make a more affordable alternative for people to have