Your link just took me to the home page for Sharper Image. I was too lazy to look up the latest on their Ionic Breeze product, but I did like this http://www.sharperimage.com/us/en/catalog/product/sku__HW569BLK" :)
There may be a whole host of reasons why they don't work, but this argument can't be among them. I am a 30+ year aquarist and I routinely use "detox pads" in my reef aquariums to remove heavy metals and other impurities that my other natural filtration does not remove. These pads are 12"x12"...