I've been following the exchanges on which nebulizer would be preferred, which, of course, gets to be quite confusing. I've been using my old Omron Micro Air portable (hand held) nebulizer for years for Ipratropuim Bromide, and more recently, for 7% saline. It seems to be working just fine for these - makes a fine mist. Is there something I might be missing, something I might not be noticing?