I have used 3 ppm and 20 ppm both successfully.  I would not go much
over 20 though.  Use as often as you need to.

Marshall

Chad wrote:

> hello, could anyone please give some info/suggestions when using CS w/
> a nebulizer. such as how many ppm to start w/, how often a day to use
> it? i've done searches on it couple sites say go w/ 5 - 500ppm 3-4
> times daily. others said only 3-5ppm. thanks in advance for your
> helpchad