CritterZone: A product review

The CritterZone wall unit.

Note: From time to time I receive swell products to review and report my observations (and those of the felines) objectively. I received no compensation for evaluating the CritterZone.

I was skeptical that a device about the size of a pound of butter could dispel the odors in 22-year-old carpeting that had seen the likes of dozen cats.