Cat urine is a very strong, unpleasant odor and it is very hard to get rid of. The ozone molecule binds with the odor molecule and oxidizes it, destroying the odor at the source. There is also a Zontec Perfect Air Plug-In that is safe to use when humans and pets are around.
For a fully automatic front loading type machine, the answer is NO. It will not work because you have no way of filling the machine from the front door side and if you try to fill through the inlet hose you would need to put water at some pressure for the relay to open and