Product review (1 stars): Don't know how or why but I was totally unable ...
Don't know how or why but I was totally unable to control bacteria when I used this product. When I went back to the pre-packaged cartridges where the granules come with the cartridge all worked well again. I cleaned both my dehumidifiers almost every day with either white vinegar or bleach solution only to find bacteria the next day.

I will NOT ever try to save a few bucks with this product again