Pet odors

Pet odors, especially cat urine, are one of the most common reasons for contacting cleaning companies. This odor is almost impossible to remove with conventional means. Air fresheners only mask the problem, and the odor returns again and again, especially in humid weather.

The reason for the persistence of the odor is uric acid. Unlike other components of urine (urea and urochrome), it does not dissolve in water and crystallizes in fabric fibers. When humidity increases, the crystals activate and again release a sharp ammonia smell.

Why conventional products don't work: Most cleaning products remove water-soluble components of urine, creating an illusion of cleanliness. But uric acid crystals remain in fabric fibers and activate when humidity increases. Ozone chemically breaks down these crystals, making the result permanent.

How ozone eliminates pet odors

Ozone is a powerful oxidizer that breaks down the molecular structure of uric acid. Being a gas, it penetrates everywhere urine could have reached: upholstery, carpets, mattresses, baseboards, floor cracks.

Oxidizes uric acid crystals into safe compounds
Penetrates porous materials to full depth
Treats hard-to-reach areas (under furniture, behind baseboards)
Destroys bacteria causing additional odor
Neutralizes pheromones animals use to mark territory
Leaves no chemical residues after treatment

Types of pet odors

Characteristics of different odors and treatment methods
Odor source	Features	Treatment mode
Cat urine	Most persistent, contains uric acid	40-60 mg/m³, 6-8 hours, 2-3 cycles
Dog urine	Less concentrated, easier to remove	20-40 mg/m³, 4-6 hours, 1-2 cycles
Marks (territory)	Concentrated, with pheromones	40-60 mg/m³, 8-12 hours, 2-3 cycles
Fur odor	Organic, from sebum	10-20 mg/m³, 2-4 hours, 1 cycle
Litter box odor	Mixture of urine and feces	20-40 mg/m³, 4-6 hours, 1-2 cycles

Ozonation process for pet odor removal

Source localization

Identify all places where pets left marks. Use a UV flashlight — urine glows in ultraviolet light. Mark all detected spots.

Preliminary cleaning

Treat visible stains with an enzymatic cleaner. It breaks down organic components of urine. Let dry completely before ozonation.

Room preparation

Remove pets and houseplants. Close windows, doors, ventilation. Raise curtains and drapes for better ozone access.

Ozonation

Place the ozone generator in the center of the room. Run for 4-8 hours at 20-60 mg/m³ concentration. Use a fan for even distribution.

Assessment and retreatment

Ventilate the room for 1-2 hours. Assess the result. For severe contamination, repeat treatment after 24 hours. Usually 2-3 cycles are needed.

Comparison of odor removal methods

Ozonation vs conventional products

Criterion	Ozonation	Enzymatic/chemical products
Principle of action	Molecule destruction	Enzymatic breakdown
Penetration depth	Full material thickness	Surface only
Hard-to-reach areas	Yes (gas penetrates everywhere)	No (manual treatment only)
Effect duration	Permanent	May require repetition
Treatment time	4-8 hours (automatic)	1-24 hours (manual labor)
Disinfection	Yes (kills bacteria)	Partial

Special treatment cases

Apartment with multiple cats

Multiple marks around the perimeter. Requires 3-4 ozonation cycles with high concentration

Wooden floor

Urine soaks into wood. Ozonation is the only way to treat wood without replacement

Preparation for sale/rental

Buyers are sensitive to odors. Ozonation is mandatory for apartments with pets

Upholstered furniture

Sofas and armchairs are favorite marking spots. Can be treated locally by covering with film

Local furniture treatment

If the odor is localized in a specific piece of furniture, chamber ozonation can be performed:

Cover the item with plastic film, creating a "chamber"
Press film edges to the floor for sealing
Run hose from ozone generator under the film
Run ozone generator for 2-4 hours
This creates high ozone concentration directly in the item
After treatment — ventilate for 30-60 minutes

Tip: To enhance effect when treating upholstered furniture, slightly moisten the surface with a spray bottle. Moisture activates uric acid crystals, making them more accessible for oxidation by ozone.

Preventing recontamination

After ozonation, it's important to prevent reappearance of marks:

Eliminate the cause of marks (stress, illness, conflict with other animals)
Use pheromone diffusers to reduce anxiety
Provide sufficient number of litter boxes (rule N+1, where N is number of cats)
Clean litter boxes regularly — dirty box provokes marking
If necessary, spay/neuter the animal
For quick removal of fresh marks, use enzymatic cleaners

Safety: Ozonation is performed with complete absence of animals! Ozone is toxic to pets just as it is to humans. Return animals to the room only after complete ventilation (1-2 hours).