Don’t have a litterbox?  The Poof Combo solves that problem.  It comes complete with its own litterbox and 1 filter system.  Just fill the pan with litter, put the cover on the pan, place the Poof system over the vent grill on the top of the pan cover and plug the supplied power supply into a convenient wall 110volt power outlet. Comes complete with one (1) Odor Fighter Cartridge, low voltage power supply, litterbox and fan/filter system.  Enjoy the no litterbox smell.

Keep a spare filter on hand.  You will not want to be without one.