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ODORS GASES SMELLS, DIAGNOSIS & CURE
AIR CLEANER PURIFIER TYPES
AIR FILTERS for HVAC SYSTEMS
AIR FILTERS, OPTIMUM INDOOR
AIR POLLUTANTS, COMMON INDOOR
AIR QUALITY IMPROVEMENT STRATEGIES
AIR TEST FOR MOLD: ACCURACY
ALLERGEN TESTS for BUILDINGS
ANIMAL ALLERGENS / PET DANDER
ANIMAL ENTRY POINTS in BUILDINGS
ANIMAL or URINE ODOR SOURCE DETECTION
BIBLIOGAPHY for ENVIRONMENTAL HEALTH, MOLD, IAQ
BLEACHING MOLD, Advice about
CAR MOLD CONTAMINATION
CARPETING & INDOOR AIR QUALITY
CAT DANDER in buildings
DIRECTORY of MOLD / ENVIRONMENTAL EXPERTS
DIRT FLOOR MOLD CONTAMINATION
DISINFECTING BUILDINGS with BLEACH
DUST SAMPLING PROCEDURE
EMERGENCY RESPONSE, IAQ, GAS, MOLD
INDOOR AIR HAZARDS TABLE
INDOOR AIR QUALITY & HOUSE TIGHTNESS
INDOOR AIR QUALITY IMPROVEMENT GUIDE
INDOOR AIR QUALITY METHODS COMPARED
LIGHT, GUIDE to FORENSIC USE
MOLD ACTION GUIDE - WHAT TO DO ABOUT MOLD
MOTHS, MOTHBALL ODORS
ODORS GASES SMELLS, DIAGNOSIS & CURE
OZONE MOLD / ODOR TREATMENT WARNINGS
PARTICLE SIZES & IAQ
Particulates & Allergens Indoors
PET ALLERGENS / PET DANDER
PET STAINS & MARKS in BUILDINGS
PET STAINS on WALLS
UV LIGHT BLACK LIGHT USES
VENTILATION in BUILDINGS
How to remove or clean off animal smells, urine, stains inside or outside of buildings: this article provides suggestions for cleaning off or removing animal or human odor removal from building interiors, building exterior surfaces, from soils around buildings or from urine-odor smelly clothing, bedding, and other soft goods.
This article series explains how to stop, get rid of & prevent future pet or other animal odors from buildings due to pet urine, pet feces, wild animal urine, or even human urine on and around buildings or on clothing and other soft materials.
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This website provides articles on to diagnose, test, identify, and cure or remove a wide range of obnoxious or even toxic odors in buildings and in building water supply.
We discuss odors from a variety of sources including animals including pets, dogs, cats, or unwanted animals or dead animals, formaldehyde odors in buildings from building products or furnishings, plumbing drains, plastic or vinyl odors from building products, flue gases, oil tanks or oil spills, pesticides, septic odors, sewer gases, and even abandoned chemicals at properties. Thanks to reader Cathye Bunthoff for odor tracking suggestions.
Continue reading at URINE ODOR REMOVAL at BUILDING EXTERIOR or select a topic from the More Reading links shown below.
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Frequently Asked Questions (FAQs)
Question: the cat in the attic left strong smells of cat pee & cat poop
My problem is that there was a cat in my attic (very large attic, approximately 4000 sq ft), for a long period of time. The cat was removed about 1 1/2 year ago, but the smell is just as strong. We have an attic ladder in one of the bedrooms and you can smell the cat urine/poop odor through that door, even when closed. Of course I can not see where the pee and poop is to remove just those areas, so is there anything I can do? - Cathy
Cathy I've dealt with this problem in a number of homes. Unfortunately the solutions that work are to remove all soft goods (insulation, for example) that are smelly or contaminated, and then to clean and seal the remaining surfaces. There are odor sealant paints used, for example, as a smoke odor remedy after a fire and that should work well in your case.
Question: trouble removing cat urine odors
I purchased a house, rather cheap, with the intent of fixing it up and renting it. The house had severe cat urine problems that I figured would be relatively easy to clean up – I was wrong.
I do not recommend using an ozone generator for this cat smell problem - if you over-do ozone treatments you can create worse and more expensive troubles than ever in the building, and regardless it's not likely to "cure" an odor coming from urine soaked wood, plaster, or other materials in the home. Ozone treatment can work successfully on particles and smoke molecules such as during deodorizing after a fire , but in other applications such as mold odor remediation we frequently receive complaints of over-treatment, and oxidized materials that emitted worse odors than ever. Ozone warnings are at OZONE HAZARDS.
I would also not laminate drywall over problem surfaces without some prior treatment and sealing of those spots. The risk is that such a solution is later found to be ineffective and there is a greater cost to tear out the work and do it over again.
Steps in removing the cat smell problem you describe include:
Question: Tenants with many animals, hedgehog, crocodile, ferret, left terrible building odors
Having had tenants in a room for 10 months with snakes,rats,a hedge hog,crocodile, monitor lizard, and a ferret. The smell left behind is grim. We have had the carpet professionally cleaned but it is still not good. We could buy one but having spent money on cleaning which hasn't worked we obviously don't want to spend money on something that is then not going to be the answer. any advice? - Kyla 11/18/11
Kyla in my experience strong animal odors in carpets are very difficult to remove, in part because odors and urine or other materials penetrate both carpet and padding; most carpet cleaning, even steam cleaning, is just too superficial to be effective for deep odor contamination. I'd remove the carpeting, clean the floors, walls, ceilings, and then see how things smell. If odors persist you may need to
Questions & answers or comments about how to remove pet, other animal, or human urine & other odors & smells in buildings.
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