Neutralize cat urine odor with enzymatic cleaners or homemade preparations. Cats don't drink as much water as other animals, making their urine odor pungent. Unneutered male cat urine is particularly strong because it contains hormones that attract females and repels other males.
Identify the source of the smell. Look for urine stains on walls, carpets and furniture. Use a black light to identify stains on dark surfaces.
Enzymatic cleaners break down urine components, such as uric acid, preventing the cat from returning to the same spot. Blot the affected area to remove the urine. Apply warm water over dry stains to facilitate the process. Avoid rubbing to prevent the urine from going deeper into the surface.
White vinegar effectively removes urine odor. Mix 100 milliliters, or 3.4 ounces, of white vinegar with 200 milliliters, or 6.7 ounces, of warm water in a spray bottle or a bucket. Clean the area carefully. Spray or apply the mix with a cloth. Let it dry, and clean the area with warm water.
Alternatively, mix 220 milliliters, or 5.5 ounces, of hydrogen peroxide, 1 tablespoon of baking soda and 1 squirt of liquid hand soap in a plastic container. Apply the mix over the area, and remove with warm water.