I use the Proneb max and like it. I bought it because another poster said Mayo had recently recommended it for her. It is MUCH faster than the Omron I had that couldn’t handle the 7%.
I recently did a survey here about neb times and which machine and nebulizer people use. I thought helpful info was shared. Here’s the link:
https://connect.mayoclinic.org/discussion/survey-nebulizers-and-compressor-systems-speed-etc/