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Removing Urine Odors From an Air Vent

Category Odors
Cleaning odors from an air vent can be difficult. This is a guide about removing urine odors from an air vent.


Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

By 1 found this helpful
August 11, 2009

How do you remove urine smell from a air vent? M son decided to start using the air vent in his room as a urinal. So I don't have to tell you what his room smells like 2 days later.

By dustan lax from Hartwell, GA


August 11, 20091 found this helpful
Best Answer

I've had extremely good luck using "OUT!" It's made for removing pet's mess, like cat & dog pee, poo, hairballs, vomit, blood, if this stuff will work for nasty cat urine, then human pee should be a cinch. It even removes blood from clothes. It works with good bacteria & enzymes. It's sold in the pet care area at Walmart & Target. It cost $4.79 at Walmart for a rather large spray bottle and smells lightly of vanilla. You have to keep it wet for the enzymes to work. Just spray it into the area where the urine is & cover with a plastic bag to keep the area wet, then leave it sit from an hour to overnight. The enzymes will do the trick. You may have to do this twice. Don't use bleach or other cleaners at the same time or they will kill the good bacteria & enzymes.


If you can't find OUT!, then any "Enzyme based" pet cleaner will work.

If you apply the OUT twice & still have odor, then you haven't gotten it on to all of the urine. Try it again. You'll simply be amazed at how well this "OUT!" stuff works. I've gotten tons of mail from people here on ThriftyFun that can't believe they actually got rid of nasty pet odors, one letter was from someone who "had a problem with ferret urine around a window for years".

Another thing that works wonderfully and you can use it after the OUT! is Peroxide. Also, you can use Vinegar and water mixed about half & half (or a little weaker). Vinegar removes odors & Peroxide "eats" & fizzes away all organic /natural stains (including dried-on blood, coffee, cocoa, grape juice & red wine).

Reply Was this helpful? 1
August 13, 20091 found this helpful
Best Answer

In most stores like Home Depot, or Sam's they sell a product called Odoband (I hope I spelled that right?). It sounds like it is "Oh-dough-ban". This stuff takes out all kinds of smells. Try it, I am most sure it will work after a couple times.

Reply Was this helpful? 1
August 16, 20090 found this helpful
Best Answer

I am sorry this has happened. Someone used our vent for a potty before we moved into our home. My daughter's room smelled terrible. We had to not only close off the vent, but tape cardboard over the vent.


We finally got the heating and air people to come out. If I had poured a liquid such as vinegar (which I have always used to neutralize potty accidents when sons where potty training), the heating and air people told me that the liquid would disintegrate my duct work. They had to cut a hole into the ceiling (in the basement, below the duct work). Then cut, remove; then replace the duct work. There is an insulation-type material in the duct work that the urine has soaked into. However, more liquid will just eventually eat away at the entire duct work. Good luck with your problem.

Reply Was this helpful? Yes
August 17, 20091 found this helpful
Best Answer

Well first I tried vingar. It gave the room a smell of acid urine. Then I tried baking soda, it didn't seem to work at first but a couple of days latter the smell was gone. Lucky for me we had steel duck work so the urine didn't soak into the fiberglass insulation. Thanks everyone for your help.

Reply Was this helpful? 1
Answer this Question...

By 0 found this helpful
May 3, 2017

Is there anything you can spray into vents to get rid of cat urine smell?


May 3, 20170 found this helpful

You can get a product called Nature's Miracle on Amazon or at your local pet shop.

Reply Was this helpful? Yes
May 4, 20170 found this helpful

Clean the coils if possible, replace/clean the filter.

Reply Was this helpful? Yes
May 4, 20170 found this helpful

It will only temp mask the smells. They will need to be cleaned or replaced.

Reply Was this helpful? Yes
May 16, 20170 found this helpful

I love Nature's Miracle and have used it for years. However, it doesn't work in the heater vent.


I have sprayed many times, thinking I have it well saturated and the smell returns the next time the heater comes on.

Reply Was this helpful? Yes
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