Cold fogger vs thermal fogger

In our new promotions page offering disinfecting, or our new services page offering pest control, we have started listing these new services, which we have partnered with Pestogo to provide.

We will have an interview with Pestogo to find out more about what they do and how they go about solving our creepy crawly nightmares and microscopic destroyers.

In this article we talk about the adopted method of cold fogging.

What is the main difference between cold fogging and thermal fogging?

By the way, when we see thick white smoke engulfing buildings whole, which follows with a suffocating chemical with pungent smells that stains your clothes, that comes from a thermal fogger. For clubs with DJ booths which spew cool smoke that does not linger, that comes from cold fogging.

Cold Fogger

Thermal Fogger



As you might have guessed, thermal foggers use a heating oil within a tube which causes the solution to vaporize, resulting in a visible cloud of smoke, their fuel sources come from propane or electricity.The propane foggers require gas cylinders to be mounted to the fogger wheres electric find are either powered using cords or battery.

Cold foggers have two ways of dispensing vapours. First way, the solution is released with a high pressure nozzle, or the solution is released shortly through a vortex of high speed air. Both causes the solution to be broken up into tiny droplets, resulting in an invisible fog. The motors of the foggers are powered by cord or batteries, and some can adjust between invisible fogs (smaller droplets) or visible fog (bigger droplets).The lack of heat makes indoor use safe for the cold fogging method.


Thermal foggers can produce visible fog in smaller droplets, which suspend in the air longer, increasing likelihood that the intended flying pest will be contacted by the solution. This is better recommended for outdoors as the droplets can penetrate dense foliage and it’s visibility allows the application of fogging to monitor and control.

Cold foggers produce a variety of sizes in droplets. The versatility allows the operator to adjust it’s thickness of the fog for various areas, indoors or outdoors.


Both types of foggers can spray water or oil based solutions. The solutions can be pest managing chemicals, disinfecting chemicals, odor control, mold and fungus control both indoor and out.

Thermal foggers are best used for vector control (insects which transmit virus and diseases to humans). As explained earlier, the droplets last longer in air and penetrates foliage and hard to reach areas.

Thermal foggers are also recommended for outdoor use as their visible fog allows for monitoring of the fogs effectiveness and control of areas and directions, which also help accountability.

Thermal foggers’ smaller droplets can enter cracks and crevices in walls, floors, ceilings and even into floor traps.

Cold foggers reduce the risk of fire, therefore ideal for indoor use. The application of invisible fog is useful where the fogging is easier to breath and doesn’t cause any concerns of fire. In addition, it is more silent as compared to the thermal foggers.

Cold fogging can be used to disinfect indoor spaces, and can be left on its own to populate the entire space with the solution.

Cold fogging is quiet, does not heat up, therefore occupants can be present and do not need to flee the premises and wait for the fog to dissipate.

Cold fogging can be used inside rooms and green houses with mold and fungicide solutions.

Now you can understand why we adopt the cold fogging method for all homes or offices, or any property for that matter. You can see us in action when you open up our services tab.

To get first hand insight, you may engage us to disinfect your home, and our service staff will explain to you on how cold fogging is replacing thermal fogging rapidly.

For pest control solutions or disinfecting services, do send us a booking request online or call into our hotline.