What Is Thermal Fogging?

In South Africa, thermal fogging has been primarily utilised in the farming and pesticide industry. Prior to the outbreak of Covid-19 most citizens were not aware of fogging aside from perhaps the smoke machines they'd see in bars or nightclubs (which are definitely not the same thing, sadly smoke machines have been fraudulently sold as disinfectant foggers).

In the hopes that we can shed some light and help the public safely decide on a fogging solution that best fits their needs, be it for commercial fogging or industrial fogging, we'd like to share some important information on how thermal fogging works and what it can accomplish for you or your business.

Essentially, fogging is a method of applying a chemical solution. There are 2 main methods of fogging. ULV (Ultra Low Volume) Fogging and Thermal Fogging. ULV is also known as cold fogging or misting, although it is to be noted that misting produces a far larger droplet size than fogging and is more comparable to chemical spraying. There are a variety of differences between ULV and Thermal Foggers but in this article, we'll look at thermal fogging specifically.

Thermal foggers use heat and pressure to atomise and spread a chemical solution. This heat is usually produced through a tube which the chemical product is pushed through to atomise into tiny particles, invisible to the naked eye. Thermal foggers use this method to produce tiny droplets from the chemical solution which then travel out the tube and into the atmosphere. The droplets produced by thermal foggers are so small that they fit between cracks in surfaces and through dense foliage to reach and cover all areas effectively in a chemical film. When these droplets disperse out a thermal fogging machine they often come out as a visible fog or 'smoke', this however depends on the chemical product being used and whether or not it was designed to be fogged. With a droplet size as small as 0.5 microns, the chemical solution can travel in the air for a lengthy amount of time, killing flying insects and airborne viruses before they even reach surfaces (depending on the product used, as always, we recommend SaniGuard or DynaFog for this).

Benefits of Thermal Fogging:

  1. Smallest Particles: Thermal fogging produce a very small droplet size which reaches all areas (0.5 to 50 microns)
  2. Mobility: Thermal foggers such as the Red Bird or Blue Bird are petrol operated and portable for easy use indoors or outdoors
  3. Always Ready: Does not require setup with cables or finding power sources
  4. Floating Formula: Creates an 'airborne' solution which can kill flying insects or virus particles before they even reach surfaces

Popular Uses for Thermal Foggers:

  1. Killing Insects: When used with the fantastic all-round insecticide DynaFog, you can kill insects such as cockroaches, fleas, ants, flies, ticks, litter beetles, moths, mosquitoes and more
  2. Disinfecting: When used with a broad spectrum disinfectant such as SaniGuard, you can effectively cover and kill fungi, mould, bacteria and viruses which cause deadly disease such as coronavirus, salmonella, Newcastle disease, influenza and more
  3. Special Effects: Thermal foggers also work great for special effects in the film industry. Their ability to create a thick cloud or fog very quickly in outdoor environments without power sources makes them a popular choice
  4. Farming Crops: For applications of insecticides, fungicides and herbicides by tunnel growers and general crop.
  5. Sanitising Animal Buildings: Thermal Foggers are a popular choice for applying disinfectants and sterilisers before introducing a new flock of poultry or young animals. SaniChick is a great example of a fogging solution for the control of Aspergillus Fumigatus in chicken hatcheries

Other popular uses and industries for Thermal Foggers:

Dust control, humidity control and sanitisation of environment, by the poultry industry, mines, governmental organisations and other private sectors.