The job is dry, the carpet is clean and the walls are wiped down, but the client walks in and says it still smells. On restoration and carpet work, odour is often the last thing standing between you and a signed-off job. It’s also where the wrong bottle costs you a second visit.
“Odour neutraliser” covers a lot of different chemistry. Some products digest organic matter, some bind odour compounds, some go through a fogger to reach places a sprayer can’t, and some just add a fresh scent at the end. They aren’t interchangeable. This guide is for Australian restorers, carpet cleaners, fire and flood crews and facilities teams. It explains the main types, how to match them to smoke, urine, sewage and musty odours, and what to check before you buy.
It’s not a substitute for the label or the safety data sheet (SDS). Dilution, dwell time, PPE and re-entry times come from the product you’re using, so read them every time.
Remove the source first
No odour neutraliser fixes an odour whose source is still in the building. Before you reach for chemistry:
- Strip out what can’t be saved. Wet underlay, soaked plasterboard, contaminated contents and anything holding sewage or urine.
- Clean the surfaces. Soot, residue and organic matter keep releasing odour until they’re physically removed.
- Dry the structure. Musty smells come back if the materials are still wet. Check your readings before you call the job finished.
Then treat what’s left. Think of odour control in three passes: clean and treat the source, treat what’s soaked into porous materials, then finish the air space if you need to.
The main types of odour neutraliser
Enzyme and bio-enzyme products
Enzyme products break down organic matter such as urine, faeces, food residue and decaying material. Because they work on the source, they suit pet accidents, sewage-affected carpet, aged-care and kennel work, and organic contamination hidden in carpet backing or underlay.
From the RW range:
- Actichem Deozyme is an enzyme digester for water-cleanable surfaces, from carpet and upholstery to tiles, concrete and plasterboard. It’s listed as neutral pH (7.5) and non-hazardous.
- Actichem Deozyme Plus combines synthetic enzymes with a four-strain bio-enzyme blend, aimed at urine crystals, sewage and organic contamination in backing, underlay and subfloors.
- Actichem Deostor Organic is an enzyme odour control for organic waste, urine, faeces, mould and decaying matter. It can be applied directly or added to your detergent or disinfectant.
Odour counteractants and concentrates
Counteractants are built to neutralise strong odours on surfaces and in the air, and are usually the heavy hitters on fire, smoke and contamination jobs. Many can also go into your cleaning solution.
- Fiberlock RECON Extreme Duty Odor Counteractant is a 3.78 L concentrate for fire, smoke, water damage, pet and organic odours. The product page lists hand spraying, mopping, carpet shampoo and laundry additive use, and cold mist fogging.
- ODORx 9-D-9 Odour Counteractant is a highly concentrated counteractant for severe smoke and fire odours on contact surfaces. It can be added to water-based cleaning solutions and applied by compression or airless sprayer. It’s not for fogging equipment, so don’t put it in your fogger.
- Actichem Deostor Extreme is a high-concentration enzyme-based odour control for the worst jobs: fire and smoke, pet urine, sewage and flood. It can be sprayed, mopped or added to cleaning solutions.
- Actichem Deostor Fire targets smoke and soot odours from plastic and synthetic fires, at a listed dilution of 1:25 to 1:50 depending on severity.
Fogging products
When smoke has travelled through a building, it gets into wall cavities, ceiling spaces, joinery and soft furnishings. Fogging puts fine droplets or vapour into the air space so the product reaches where the odour went. Fogging products are matched to the type of fogger, so check the label before you fill the tank.
- ODORx Thermo 55 is a solvent-based counteractant for thermal fogging only, used undiluted, for smoke, fire, tobacco and organic odours embedded in a structure. It also comes in a citrus fragrance.
- Actichem Odourtak W is a water-based enzyme odour control for thermal foggers that are compatible with water-based products. It’s aimed at smoke and soot odours from plastic and synthetic fires, and is listed as suitable for occupied environments during restoration. The page gives 0.5–1.5 ml per m³ of air, a minimum 30-minute dwell and then an hour of ventilation, and calls for respiratory protection.
- Fiberlock RECON (above) is listed for cold mist fogging.
For the machines, the foggers and ULV machines range includes the Polivac Electric ULV Fogger (4 L tank, 9–16 L per hour, 15–50 micron) and the Longray ULV Cold Fogger 2680A II. These are ULV (cold) foggers. Thermal-only products like Thermo 55 need a thermal fogger, so match the chemical to the machine you actually have.
Odour absorbers and carpet treatments
Some products are designed to go through your extraction system or onto the fibre, rather than into the air.
- Research Odaban Odour Absorber is a quaternary ammonium-based odour absorber for pet urine, food and smoke odours. It’s listed as compatible with extraction cleaning, usable as a spray, mop, injection or tank additive, safe on wool and no-rinse on carpet. For extraction work there’s also a listing for Odaban E for extraction cleaning systems.
- Actichem Pet & Flood is a stain remover for urine deposits, cellulosic browning and associated odours on carpet and fabric. It’s ready to use or diluted 1:4, at pH 2.5, so handle it with the PPE on the label.
- Sampson Odour Soaker is a sodium bicarbonate powder you sprinkle on and leave to absorb. It’s useful as a quick first response on spills and accidents before the full clean or extraction.
Finishing sprays and passive blocks
Once the source is treated, a finishing product gives the client a fresh room at handover. These don’t replace source treatment.
- ODORx Space Spray Citrus Lemon is a ready-to-use industrial odour neutraliser for the air space and target areas, applied with a compression sprayer. It’s positioned as a final deodorising step after carpet cleaning, smoke restoration or remediation.
- ODORx Bad Odor Block is a passive wicking block that activates once the packaging is opened. The product page lists use in drying environments, on air mover and carpet dryer intakes, in ducts and in vehicles. It’s handy for keeping musty smells down while a drying job runs.
Matching the product to the odour
| Odour source | Start with | Then consider |
|---|---|---|
| Pet urine in carpet | Enzyme (Deozyme, Deozyme Plus) or Pet & Flood | Odaban through the extraction; finishing spray |
| Sewage or flood-affected materials | Strip out, clean and disinfect first; enzyme (Deostor Organic, Deostor Extreme) | Counteractant on remaining surfaces |
| House or contents fire (general smoke) | Clean soot; counteractant in cleaning solution (9-D-9, RECON) | Fogging (Thermo 55 thermal, RECON cold mist) |
| Plastic or synthetic fire | Deostor Fire | Odourtak W via a water-compatible thermal fogger |
| Musty smell during drying | Dry the structure; remove wet materials | Bad Odor Block at air mover or dryer intakes |
| Handover freshness | Source treated first | Space spray |
The table is a starting point, not a recipe. The label for each product sets the dilution, dwell time and surfaces it suits.
What to check before you buy
- Application method. Sprayer, mop, extraction, fogger or passive. Check the fogger type too, because thermal-only and “not for fogging” products are common.
- Surfaces. Wool carpet, natural stone, leather and sensitive finishes all need checking against the label. Test on an inconspicuous area first.
- Concentrate or ready to use. Concentrates go further, but only if your crew dilutes them correctly. A dispenser kit and a decent pump sprayer help keep the mix consistent.
- Occupied or empty building. Some fogging products need the building cleared, PPE and ventilation before re-entry. Plan that with the client before you start.
- SDS and PPE. Have a current SDS for every product in the van. If anyone needs a refresher, read how to read a safety data sheet. For respiratory protection on dusty or contaminated jobs, see our guide to choosing a P2 mask. Some fogging labels call for more than a particulate mask; the Odourtak W page, for example, specifies Type A filters.
- Fragrance. Neutral options are best when the client is sensitive to scent. Some ranges come in citrus or floral if a fresh finish is wanted.
Common mistakes
- Fragrance over the source. Masking a smell gets a complaint a week later. Treat the source first.
- Fogging before cleaning. Fog over soot and residue and you’ve added a layer, not removed the problem.
- Wrong product in the fogger. Putting a “not for fogging” concentrate or a thermal-only solvent into the wrong machine is a safety issue as well as a waste of product.
- Mixing chemistry. Don’t combine products unless the label says you can. Our Percide vs BioSan II vs Mould Exterminator comparison covers the disinfectant and mould side.
- Calling it before it’s dry. Musty odour on a water job usually means moisture is still there. Re-check before you leave.
Related reading
- How to permanently remove smoke odour from your home
- How to choose carpet cleaning chemicals for extraction and spotting
- How to choose an air scrubber for restoration and remediation
Stock up on odour control
Browse the full odour control and deodorisers range, or the wider fire and odour restoration category. If you’re not sure which product suits a job, call the Restoration Warehouse team on 07 3568 4925, email sales@restorationwarehouse.com.au, or arrange collection from 9a/35 Learoyd Rd, Acacia Ridge.
