I didn't expect much when I 1st got it & put it in my home office, where I also have one of the cats litter boxes. This little purifier has been an amazing addition to the office! It's super easy to set up and very quiet when working. Has cute little chimes when starting up or alerting you for something. It knows when to alert you to clean it out after a week of using it. You can feel and smell the difference in the air, how fresh and clean it becomes, I don't even smell the cat box anymore! I never knew I needed something like until now! It's small enough to be portable where if you want to use it in the kitchen or move it to a different room it's not a hassle. Perfect for small rooms & really works with just water & non-iodized salt!