Every cat has its preferences. Some cats prefer the light and visibility provided by the Van Ness Extra-Large Translucent Enclosed Cat Pan while you still get to enjoy the odor control benefits of a fully enclosed litter pan.Use For: Ideal for multi-cat householdsOdor Control: Exceptional odor and litter scatter control. Replaceable Zeolite air filter helps reduce litter box odors. Includes filters for initial use; replace as needed. *includes top hood, bottom pan, removable odor door & replaceable Zeolite air filter. Mess Reduction: Enclosure helps reduce litter scatter that often occurs with cats. Drip shield to help prevent any leaks between the top and bottom cat box.Easy to Clean: High polish finish makes pan easier to cleanVisibility: Ease anxiety that some cats have when using an enclosed cat pan and provide a view without opening to see if needs to be cleaned.