I'm afraid we saline users drove the handy Phillips Innospire GO nebulizer off the market. Mesh nebulizers aren't intended for the corrosive particles of salt. Mine failed several times within the warranty period and were replaced. Every time I took one apart, I could see the effects of the salt on the fine mesh screen. And if you read the "fine print" in the nebulizer descriptions or manuals online now, most say "not for hypertonic saline."
And, according to the Phillips rep I spoke to when they were being discontinued, "mesh nebulizers are not meant for the multi-solution multi-use daily patient" which seemed silly to me - who would want one more?