The best odor remover I have ever come across is called CONSUME. It actually
has the enzymes extracted from living bacteria in it and it literally EATS
the odor up. I pulled up a carpet once in an apartment I was installing
carpet in and found CRYSTALIZED cat urine under the old carpet. I came home
smelling like a cat box and my wife made me strip before entering the house
and then immediately take a shower. We mopped some CONSUME over the area the
next day... and the following day there was absolutely no odor at all.

CONSUME is made by SPARTAN cleaning supplies company, and is available in
gallons at most janitorial supply stores. It mixes 4 to 1 with water so the
one gallon actually makes five. It costs in the neighborhood of $14 or
so.... and it works. I worked ten years for a professional janitorial firm
and we encountered a men's restroom at a school that the young boys
apparently had bad aim and often missed the urinals and peed into the grout
between tiles. We tried a lot of different very powerful compounds but the
place still smelled like an outhouse on steriods. Finally we stumbled across
CONSUME and it immediately took care of this serious problem. So get some
CONSUME and get rid of any and all cat odors.