Our cats may be the most loveable creatures in the world, but cleaning cat urine off the floor is still a major chore. You not only need to remove the cat urine, you also need to remove the odor. Otherwise, your cats will smell the remnants of the urine and pee there again. To effectively remove cat urine odor, you need to kill the bacteria, which is the main cause of the smell.
One of the best cat urine removers is Natures Miracle. This is an enzyme cleaner - you can buy it from places like Target, WalMart or Petsmart. It is a concentrated liquid, and comes in a white bottle with a red cap. The instructions on the bottle are pretty easy to follow. Not only does it clean cat urine from your floors, it can even remove them from carpets and fabrics. This stuff can be a bit expensive, so you might want to get a blacklight to use with it. Turn on the blacklight in the dark, and it will make the spots with cat pee shine yellow or green. Then you can just use the Natures Miracle on those spots, without washing the entire floor or carpet.
Any commercial enzymatic cleaner will probably work as a cat urine remover - it does not have to be Natures Miracle. The only thing is, enzymatic cleaners can be a bit finicky. Not all of them work on all types of stains. You have to make sure to get a brand which works for cat urine removal. So the best place to buy some is probably your local pet shop. Look at where they sell the litter for cats. Better yet, ask the sales staff where they keep the enzyme cleaners for cleaning cat urine.
Another good way of cleaning cat urine and its odor is to use a steam cleaner. Friends have gotten good results with the Polti Vaporetto which uses steam to disinfect and remove dirt. This steam is also very effective at killing the bacteria in the cat pee, and works on both your floor and carpets. The Polti is on the expensive side, though. Something cheaper like the Light and Easy steam mop works almost as well, for a fraction of the price.
If you are on a tight budget, you can soak the spot where your cat peed with strong disinfectants like Dettol or Listerine. You may need to repeat this a few times to remove all the smell. Pouring boiling water over the spot can also work - you just need to be careful. Some types of bleach can kill bacteria, and should also do the trick. But you want to check the ingredients list before you use it. Make sure it does not contain ammonia, otherwise it will just attract your cats to pee there again.
So, here are the three best ways for cleaning cat urine off your floor:
1) enzymatic cleaners like Natures Miracle;
2) Steam cleaners;
3) Any strong disinfectant (like what they use in hospitals).