Very quiet!! And fast , has cut the treatment time down considerably.
The Pari ProNeb Max works very well when one does a lung treatment.
That is the only kind I ever purchase.
Great nebulizer can get through my son's breathing treatments in 10 minutes.
I use this nebulizer 3 hours a day. For many years I have done so. This model stays quite and lasts longer then others. A few years for me.
