You could also try this way: clean the lenses with toothpaste and toothbrush. Then, spit on the lenses and rub that around the whole area of the lens. I give mine a really quick dip in the water, then get rid of the water and it's ready to go! It sounds gross but it works better than any commercial defogger
I have an Omer Alien too, and they're very nice masks.
