Description “Magic Blue is a non-toxic litter box filter that absorbs and retains up to 80% of ammonia and reduces fecal odors by an average of 40%, depending on your cat’s diet. Magic Blue absorbs approximately 25times more of the hazardous ammonia gases than activated carbon filter. Reduces hazardous ammonia gases for a safe and cat-friendly litter box Fits every litter box Reduces hazardous ammonia gasses for a safe and cat-friendly litter box Unscented and non-toxic Includes reusable plastic holder and 2 filter pads Made of BPA-Free Materials Dogcatto Pet Store “