I'm using this in my rat and cat litter boxes, and the odor seems to be a little less strong. I did some research, and the main "ingredient" of zeolite has been studied and proven to not cause respiratory issues in lab rats/mice, so I deemed it safe to use around my rats.
My young daughter has a hamster and she's not really good about cleaning the bedding in the cage regularly - go figure...so when it starts to smell, I sprinkle Healthy World into the bedding and the odors disappears, almost instantly. I did some reading about the material before buying it and it turns out to be completely organic and safe for all ages and animals. And don't forget the cat box too, works great with kitty litter.
My wife and I leave our dog in his kennel when we're out of the house, and when we get back home we are often welcomed by a foul smell as soon as we walk in the door. I recently got tired of this problem, and searched for a solution. I came across Healthy World, and I couldn't be happier. No more searching, and most importantly my house no longer has that horrible stench when I come back home.