Hi from a ;newbe that is old enough to use that for an excuse in not really 
knnowing what I'm doing from a scientific point. However I have been using a 
Sota instrument. Beck also I believe its called. I make the cs exactly to the 
directions, it is clear. and has worked on  a varity of situations to my 
delight. I ;just yesterday found a Sunbeam Ultrasonic Humidifier at 
Wal-Mart,$40 to use for a sinus condition. Plan to use it at night to see if 
it would help.  Now I realize that I don't know if I should just add stright 
cs, That would be 2.6 gallons to fill it!  I only make 16 oz. at a time and 
each batch takes 20 minutes to make.  I will do it if that woul.d  be ;the 
protocol. Perhaps I should add some plain distilled water to the cs. I need 
some advice please. I have no testing equpitment. I hope this doesn't sound 
too vague but the simpler the better for this great-grandma, and so fat that 
has worked wonderfully well. Thanks for your time and help. Betty Ft. 
Lauderdale