ULV and dry fogging for Sydney workplaces, schools, childcare centres, gyms, clinics and warehouses. Always performed after a physical clean, never instead of one. Documented agents, dwell periods and written re-entry times, with rapid response for outbreak situations.
Fogging disinfection distributes a disinfectant as a fine aerosol so it settles across a whole room, including surfaces a cloth cannot reach. It works only on surfaces that have already been cleaned, because organic soil deactivates disinfectants. Treatment areas are closed during application and for a defined dwell period, then ventilated before re-entry.
Fogging has a reputation problem, and it earned it. During the years when every business wanted visible reassurance, plenty of operators sold fogging as a stand-alone service on surfaces that had not been cleaned, in rooms where nobody had checked the dwell time, using products chosen for how impressive the machine looked. The result was a lot of money spent on treatments that could not have worked, because a disinfectant sitting on top of dust, grease or organic residue is consumed by that residue before it reaches anything living.
We do it in the correct order and say so plainly. Surfaces are physically cleaned first, which removes the soil load and the majority of the microbial burden with it. Only then is the disinfectant applied, whether by fogging for whole-room coverage or by wiping for targeted high-touch points. Fogging is a coverage tool, not a magic one: it gets an agent onto surfaces evenly and quickly across a large or complex space, which is exactly what a manual round struggles to do.
That also means fogging is not a weekly subscription. A workplace that is cleaned properly does not need routine fogging, and selling it that way is selling a service the client does not need. It belongs in defined situations: outbreak response, handovers, reopenings, and spaces whose geometry defeats wiping. If the situation does not call for it, we will tell you and quote the cleaning that does.
Outbreak and incident response scheduled around your closure window. Written treatment record supplied.
1300 494 983Enquire OnlineUltra low volume fogging pushes disinfectant through a nozzle at a droplet size that is small enough to disperse through a room but large enough to settle onto surfaces within a reasonable time. It gives good surface coverage, it deals with floors and horizontal surfaces well, and it is the practical choice for most workplace, school and warehouse applications. The trade-off is that surfaces are left lightly wet, so some materials and equipment need covering and the room needs time to dry.
Dry fogging produces a much finer aerosol that behaves more like a gas, remains suspended longer and distributes into voids, behind furniture and around obstructions that a coarser fog shadows. It leaves surfaces essentially dry, which suits spaces with electronics or sensitive contents. In exchange it needs a properly sealed room, a longer dwell, and tighter control of ventilation during the treatment, so it is less forgiving of a space that cannot be closed off.
Choosing between them is a function of the space, not a preference. A warehouse with high racking and no sealing is a ULV job. A sealed server-adjacent room or a fitted-out office with soft furnishings may be better suited to dry fogging. We assess the space, the contents, the ventilation and the available closure window, then recommend the method and state the reason in the quote rather than defaulting to whichever machine is on the van.
Most fogging calls arrive on a bad morning. A childcare room has had multiple gastrointestinal cases overnight. An office floor has had a cluster of respiratory illness and staff are anxious. A gym has had a skin infection reported. An aged care or disability service has a confirmed case and needs the affected areas treated before the next shift. In each case what the site needs is a fast, correct response and something in writing at the end of it.
The sequence is the same regardless of the setting. We confirm what is being responded to and which areas are affected, agree the closure window, remove or cover food, sensitive equipment and anything that cannot be treated, physically clean the affected areas with attention to touch points and any soiled surfaces, then fog to the agreed coverage. The area stays closed for the dwell period, is ventilated, and is released with signage removed and a written record handed over.
Gastrointestinal outbreaks deserve a specific note, because the organisms commonly involved are not reliably killed by every disinfectant on the market. Agent selection for those events has to reflect what is actually being targeted, and where soiling involves body fluids the response follows a spill protocol with the correct waste handling before any fogging happens. Sites needing that level of response regularly usually hold it alongside our biohazard cleaning capability.
Preparation is most of the job. Food, drink, utensils and open consumables are removed. Food preparation surfaces are identified so they can be handled with an appropriate agent and rinse step. Electronics, servers, medical devices, artwork, instruments and anything with an open mechanism are covered or excluded. Personal items are cleared from desks and lockers. Plants and aquariums are removed. Access doors are identified so signage covers every entry, including the ones people actually use rather than the ones on the floor plan.
Air handling has to be considered before the machine starts. In a multi-tenant building a shared system can carry aerosol beyond the treated tenancy, so mechanical services are isolated or set to the correct mode with building management involved. Smoke detection in the treatment zone is assessed because some detector types respond to a fine aerosol, and isolation is arranged through the site fire services contractor. Discovering that on the night, with a monitored alarm and a fire brigade attendance, is an expensive way to learn.
Release is a defined step, not a guess. The dwell period from the product documentation is observed, the space is ventilated, surfaces that need a rinse receive one, signage comes down and the treatment record is issued. Sites that also want the routine programme reviewed afterwards usually pair this with office disinfection services or a scheduled commercial cleaning contract so touch points are covered between events.
Some environments genuinely justify fogging on a planned basis rather than only in response to an incident. Gyms and change rooms are the clearest case, because equipment geometry, matting and locker banks create enormous surface area that no manual round can fully cover, and skin contact is constant. Schools and childcare centres in the middle of a winter illness season benefit from treatment during a term break when rooms are empty and the timing is free.
Large open industrial floors, cold storage areas and food handling warehouses are candidates where the area is simply too big for manual disinfection to be realistic inside a shutdown window. Fleets, bus and coach interiors, and plant cabins are another, because they are small sealed volumes full of touch points and awkward geometry. Tenancy handovers in commercial buildings are a fourth, where an incoming tenant wants the space treated before fit-out begins.
We service all of these across the Sydney metropolitan area, from the CBD and North Sydney through Parramatta and the western industrial corridors to the eastern suburbs, inner west, south west and Northern Beaches. Facilities that want the treatment folded into an existing programme run it through their facilities management cleaning arrangement. Call 1300 494 983 to discuss the situation and we will tell you honestly whether fogging is the right answer.
Fogging disinfection uses a machine to break a liquid disinfectant into very fine droplets and distribute them through a room as an aerosol, so the agent settles on surfaces including ones a cloth would not reach. Ultra low volume fogging produces droplets that settle relatively quickly and wet surfaces lightly. Dry fogging produces much finer droplets that stay suspended longer and settle more evenly. Both are area treatments applied to a whole room rather than targeted at specific items.
No, and this is the most important thing to understand about it. Disinfectants are deactivated by organic soil, so fogging a dirty surface achieves far less than the label suggests and in some cases achieves nothing at all. Fogging is a step that follows cleaning, never one that substitutes for it. Any provider offering fogging as a replacement for a physical clean is selling reassurance rather than a result. We clean first, then fog, and we say so in the scope.
Fogging earns its place in specific situations rather than as a routine weekly service. The common ones are a confirmed infectious illness in a workplace, school or childcare room; a gastrointestinal outbreak where a large area needs treating quickly; a facility handover between tenants; a site returning to use after a long closure; a large open area with far more surface than a manual disinfection round can cover in the window available; and complex spaces such as gyms and change rooms where equipment geometry defeats wiping.
That depends on the agent, the concentration and the ventilation, and it is set by the product safety data sheet rather than by preference. Typically a treated area is closed during application and for a defined dwell period afterwards, then ventilated before re-entry. We give the facility the re-entry time in writing before the job, post signage on every entry point, and coordinate with building management where a shared air handling system means adjacent tenancies also need to be considered.
It needs planning. Food and food contact surfaces are covered or removed and food preparation areas are handled with agents and rinse steps appropriate to a food premises. Sensitive electronics, servers, medical devices and musical or audiovisual equipment are covered or excluded from the treatment zone. Smoke detection needs to be considered because a fine aerosol can trigger some detector types, so isolation is arranged with the building fire contractor in advance rather than discovered when the alarm sounds.
A treatment record naming the areas treated, the total area or volume, the product used with its active constituent and concentration, the application method and equipment, the dwell and ventilation times observed, the operator, and the date and times of application and release. The safety data sheet accompanies it. Facilities in regulated or audited environments generally need that record on file, and workplaces responding to an infectious illness usually need it to show staff and their insurer what was actually done.
Cleaned first, fogged second, documented properly. Honest advice about whether your situation actually calls for it.
