The most effective way to remove cat urine odor is to choose cat litter that absorbs odors better, or to add a certain amount of activated charcoal to the cat litter. You can also buy cat urine deodorizers, cat urine decomposing agents, and cat urine covering agents online; they work incredibly well!

Of course, you can also clean the litter box promptly. Cat urine has a strong odor, and if the owner doesn't remove it, the smell can linger. Therefore, clean it up immediately when you find cat urine. Alternatively, you can spray the area with vinegar to eliminate the odor and disinfect it with bleach. Another method is to use white vinegar. For urine odor on bedding or clothing, you can mix water and vinegar in a 1:1 ratio in a spray bottle, spray it on the urine stains and odorous areas, and then wash them normally in the washing machine.