My doc just recommended I start nebulizing with hypertonic salon a few times a week. My Omron compressor did the same as yours. I think I could’ve spent the day and the cup would’ve had solution left. It had always taken at least 20” to neb the albuterol, longer than most here. It had just 16-17 psi. I ordered a Proneb Max with higher psi and after trying a couple different neb cups, I’m using the Aeroeclipse with it. It’s pretty new for me, but seems to be working well. Both were ordered on Amazon.

Good luck