At any rate, drop sizes vary from dropper to dropper and person to person. You need to do a measurement to see how many drops you get per ml.
Once you have that, 1 ml of 22.4% sodium chlorite has 224 mg of chlorite.
This is using sodium chlorite in water. The water is used to activate and no acid is used.
As far as administration goes, the sodium chlorite is added to the drinking water and the animal drinks the water. With the humidifier the animal simply breaths the air that has the sodium chlorite suspended in it.