Is security fog safe?
This is the question we are asked most often — and it is a fair one. The space you are protecting holds your staff, your customers and your stock. This guide addresses it directly.
What is the fog made from?
Security fog is produced by heating and vaporising a water-based glycol mixture. Similar formulations have been used in stage and concert effects for decades. It is not a product of combustion — it is vapour, not smoke. That distinction matters: unlike smoke it contains no carbon monoxide or particulate matter.
For people
The fog is non-toxic to breathe. Even so, systems are configured to operate only when the space is empty — that is, when the alarm is set. The reason is not toxicity but loss of vision: orientation is difficult in dense fog, and someone moving in a panic can fall or walk into an obstacle.
Staff training is therefore an inseparable part of every installation. If your team knows what the fog is, which way the exit lies and how to stay calm, the system poses no risk to anyone. Where people with respiratory conditions are present we recommend an additional assessment.
Electronics and stock
The fog is non-conductive and leaves no condensation on surfaces. Computers, servers, till systems and electronic goods are unaffected. It leaves no staining or odour on textiles, and does not penetrate sealed food or pharmaceutical packaging. After ventilation the space and its contents return to normal with no special cleaning required.
Interaction with fire systems
This is the technical point that deserves the most attention. Optical smoke detectors can read the fog as smoke and raise a fire alarm. Installation is therefore coordinated with the fire detection system: detector type and placement are reviewed, and where necessary the fire panel is informed of a fog discharge. A properly planned installation does not produce spurious fire alarms.
Legal and insurance considerations
Security fog is a well-established security technology in Europe with defined standards. When installing in Türkiye we assess the site’s compliance with fire regulations alongside any requirements in your insurance policy, and we document installation and maintenance records for you to share with your insurer.
In short: the fog is harmless to breathe, does not damage property or equipment, and leaves no residue. Two things need attention — staff training because of the loss of vision, and coordination with fire detection. Both are part of the installation scope.
What does your site need?
Let’s apply the criteria in this article to your own space. In a free survey we calculate the volume and agree the right model with you.