Use a Black Light to Pinpoint Hard to Detect Cat Urine Odor Spots

The stench of pet urine is definitely annoying to everyone in the household. Oftentimes, you don’t know where to find it, but your nose keeps telling you “it’s around here somewhere”. In an effort to pinpoint the spot/s, you get down on your hands and knees, crawl around, feeling and looking for telltale spots. If it hasn’t dried up yet, there would be no problem, but once it does, you need every help you can get to spot the stains on your floor.

Urine and poop stains encourage your cat to return to these same spots when they want to go potty. It is their instinct to associate specific scents with certain behaviors. When they feel the urge to pee or poop, they will look for specific spots around the house where they have left their scent and do their thing there.

Many cat owners find it hard to totally get rid of cat urine odor because these fur balls can get into the most unlikely places. Sometimes it can take days to find the exact spot.

How Does the Black Light Work?

The black light is also referred to as ultraviolet or UV light. It is commonly used to examine specific markings on bills and some documents to prevent counterfeiting. However, what you may not have known is that a black light has many other uses such as being used in tanning beds to boost production of vitamin D in the skin. In the medical field, UV light is used for sterilization and disinfection. It is also used to detect body fluids such as semen, blood, and urine thus it is a useful tool in any crime scene investigation. It is also for this reason that UV light is useful in detecting cat urine spots anywhere in the house.

When exposed to the black light, cat urine gives off a distinct glow. Even after it has dried up, the chemicals that are responsible for the characteristic urine scent will still be visible, thus making it easier to find urine stains, even the older ones.

Using the Blacklight

The best time to go “urine hunting” using the black light is during the time when the house is dark. So you can do this before sunrise, after sunset, or on a dark, cloudy day. Start by shining the light on all horizontal surfaces including furniture tops, bookshelves, bed sheets, clothes, bathtubs, and sinks. If your cat is spray-marking, you should also examine vertical surfaces as well, especially near corners, doorways, curtains and hallways.

Urine stains will still glow yellow when subjected to UV light during the day, however, you need to point the light approximately 3 feet away from the surface to be able to notice anything. Some pet owners will have a hard time kneeling on the floor it is best to do this at night when you can direct the light on surfaces while standing. Once you have pinpointed the spots, you can treat and disinfect these locations to get rid of the stain and odor.

Using this flashlight can help you stay on top of your kittens issues and help to encourage them to use the litter box, or directing them outside when they head towards their 'favourite sopt'.


Thanks for stopping by, I hope that helps!

Sarah Walker
Sarah Walker