Best nebulizers for CS?

I've been using a nebulizer for years with colloidal silver for my usual upper respiratory problems - pneumonia, bronchitis etc. It's the loud motorized kind that annoys everyone in the house.

Somewhere I read that using an ultrasonic nebulizer is a superior way to have the CS spread more uniformly throughout the lungs. Anyone know if this is true?

And is the medicinal atomizer kind of ultrasonic nebulizer superior or would a simple ultrasonic essential oil diffuser work just as well? Which would leave the CS most intact? Thanks.