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How Long Does Cat Urine Odor Last? What You Need To Know!

cat pee in bed

If you’re a cat owner, you’ve probably had to deal with cat urine, which is potent smelling, to say the least! If you’ve ever had a cat pee on anything other than kitty litter, you also know how difficult it is to remove that smell. You’ve cleaned the area and sprayed deodorizer, and you can swear that you can still smell it.

How long does that horrific odor last? Should you get your couch steam cleaned? Should you buy a new carpet?

We’re here to help you deal with that cat urine issue. We answer the question regarding how long the odor lasts and the best way to eliminate it. Hopefully, you’ll be able to reclaim whatever it is that smells like cat pee and make it smell like new again — or at least, not like cat pee.

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How Long Does Cat Urine Odor Last?

cat pee on the carpet
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How long can cat pee smell linger when your cat has peed on fabric or some other surface?

Unfortunately, cat urine smell can linger for practically forever! This is only mostly true if you don’t tackle the stain and odor as soon as possible, though.

Why Does Cat Urine Stink So Much?

Cat urine contains plenty of uric acid, which is what gives it such a strong and smelly odor.

When cat urine is left alone, the bacteria found in the urine starts to decompose, which then gives off that intense ammonia odor that never seems to go completely. When the urine breaks down even more, it releases mercaptans, which can also be found in skunk spray.

The stench can be even more pronounced if you have an un-neutered male cat, due to their testosterone, or a senior cat whose kidneys don’t work that effectively.

However, if you use the right cleaners and techniques, you should be able to remove the smell. There is most definitely a right way and a wrong way to clean cat urine, though, so we’ll walk you through the steps.

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Cleaning Up Cat Urine

You need to do a few things to tackle cat urine stains and smells, and these steps also depend on how old the stain is.

1. Blot the cat pee stain

Rug Cleaning
Image Credit: Andrey_Popov,Shutterstock

If the urine is still wet, you need to start by blotting. This step is super important, and it’s also essential that you don’t rub or scrub the stain because you’ll just push the urine further into the surface.

Use a clean and dry rag or paper towel, and gently press it on the stain so it will soak into the towel and not your furniture.


2. Cover the stain

Once you’ve soaked up the excess urine, use a new clean rag or paper towel and put it on top of the stain. Just leave it there for a bit so it can remove most of the excess pee.

Time to Clean

Once the urine seems to be mostly absorbed, it’s time to clean it. There are a few different methods that you can use, all of which we’ll cover.


3. Use Enzymatic Cleaners

TriNova Pet Stain & Odor Remover

This option can be expensive but it’s also extremely effective. There are many enzymatic cleaners on the market specially made for things like cat urine. You can use cleaners like the TriNova Pet Stain & Odor Remover.

Enzymatic cleaners can break down the uric acid in the urine, which is the main instigator of the stink factor. You typically spray it onto the stain and let it sit for about 5 minutes or so. Just ensure that you follow the instructions of whatever kind of cleaner that you buy.

You’ll need a clean cloth or paper towel to place over the stain. Let it sit until it’s completely dry, even if it takes a few days. If you can still smell urine, just clean it again following the same procedure.

The beauty of enzymatic cleaners is that they are literally made to remove cat urine odor.

Our favorite enzyme cleaner is the Hepper Advanced Bio-Enzyme Pet Stain & Odor Eliminator Spray because it permanently removes even the very worst pet stains and smells you can imagine (and makes clean-up a breeze). They even offer a 100% satisfaction guarantee! Click here to order a bottle and freshen up your home today.

At Pet Keen, we’ve admired Hepper for many years, and decided to take a controlling ownership interest so that we could benefit from the outstanding products of this cool cat company!


4. Vinegar and Baking Soda

Since most people have these ingredients already in the house, it’s a great way to quickly remove urine odor and stains. Start by diluting white vinegar 50/50 with distilled water in a spray bottle (it can still work with tap water).

Lightly spray the stain, let it sit for about 10 minutes, and then start the blotting process again to remove the excess moisture.

Follow the blotting by sprinkling a generous amount of baking soda over the urine and letting it sit for at least several hours. The baking soda will absorb the extra moisture (both from the urine and the vinegar). You might need to follow these steps more than once.


5. Hydrogen Peroxide, Dish Detergent, and Baking Soda

Disinfectant spray and deodorizer
Image Credit: Squirrel_photos, Pixabay

Enzymatic cleaners work well regardless of how old the stain is, but this is a good option.

In a spray bottle, mix about 1 cup of 3% hydrogen peroxide with 1 teaspoon of grease-cutting dish detergent and 3 tablespoons of baking soda.

Spray the urine stain and let it sit for an hour. Follow by dabbing the stain with a dry and clean rag. Continue this process until the stain and cleaning solution is gone.


6. Absorbing the Cat Pee Smell

If you’ve removed the stain and most of the odor but can still smell a trace amount, you can try this tip. Fill a bowl with activated charcoal or coffee grounds and leave it near the odorous area. Leave it there overnight, and the smell should hopefully be absorbed.

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Why Did My Cat Pee Outside The Litter Box?

Cat peed in shoes
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Once you’ve dealt with the odor, you should look at why your cat urinated outside of the litter box in the first place. There are several reasons that this can occur:

  • Medical Issues: Certain health problems can lead to an increase in urination, such as liver diseasekidney disease, and diabetes. There are other conditions that can make urinating painful. Medical issues such as urinary tract infections and bladder stones can lead to urination in inappropriate places because cats might start to associate pain with their own litter boxes.
  • Anxiety: A certain level of anxiety and stress can definitely lead to a cat urinating inappropriately. Having a new pet or person move into the home or a recent move to a new home can all be factors. Behavioral problems tend to crop up when a cat feels stressed because they prefer a stable and routine environment.
  • The Litter Box: The litter or the box itself could be the problem. If the box is too small or in an area with excessive noise and activity, some cats might start avoiding it. The litter should also be cleaned often, and you should get unscented and medium to fine litter.

In some cases, you should speak to your vet about the problem. You can also consider an animal behaviorist if it’s a behavioral issue.

A Few Warnings

There are a couple of things that you should be aware of before you tackle pee stains and odor.

Test a Spot

Before using anything to clean the stain, try it out on a small unseen area. Some cleaners might cause discoloration or damage, so it’s safest to test it out first.

Bleach and Ammonia

Since cat urine can smell strongly of ammonia, if you use any product to clean the cat urine stain that is ammonia-based, chances are that your cat will continue to urinate in the same spot. This is why enzymatic cleaners are best, as they break down the ammonia scent so your cat won’t be drawn to the same area.

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Conclusion: How Long Does Cat Urine Odor Last

We hope that our tips have helped you quickly remove urine stains, particularly the odor. If nothing seems to work, you might want to consider having a professional clean the item.

Be persistent and patient when cleaning, and make a point of trying to figure out why your cat peed outside of the litter box. You certainly don’t want to spend all that time and effort cleaning it up only to have your cat do it again. Also, of course, you want your cat to be happy and in good health.


Featured Image Credit: cunaplus, Shutterstock

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