Don't know if this really applies to you here, as it sounds like you don't do Tobi, but supposedly the DeVilbiss PulmoAide is the only one approved for use with Tobi due to it's PSI (or something like that, lol). I had a Pari ProNeb and switched to the PulmoAide and my treatments go much faster now. I've only had the thing for a few months, but I'm hoping it will last longer than my Pari compressors (which barely made it a yea each time). The PulmoAide is supposed to be more heavy-duty and can be used for multiple treatments (as opposed to only for 30 minutes at a time, like the Pari compressors).