How much water does the Echo Refresh take to fill?

You would use about 7/12 cups of distilled water in the Echo Refresh. All you would need to do is unscrew the top and pour the water inside.

There is not a level indicator on the machine. If you overfill, the machine will tell you and wont function. To empty out the water, you would need to go tot he back of the machine and take out to left plug to drain the water out of it.