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Advantages of thermal fogging

IWESCO employee using a thermal fogging machine

Thermal fogging is a versatile application that has many benefits and uses. IWESCO has recently added fogging to its list of offerings, making particular use of it during the Covid-19 lockdown. As a certified essential services provider in South Africa, IWESCO has been using thermal fogging machines to disinfect clients’ premises in preparation for the reopening of the economy.

Fogging is a process where a fine mist of chemical disinfectants is sprayed into a closed room. The antibacterial disinfectants then settle on all the surfaces within the room, including those hard-to-reach spots. Most importantly, usable surfaces such as countertops, door handles, touchpads and seats are coated with this mist of cleaning chemicals that kill germs, bacteria and viral spores.

When to use thermal fogging

Thermal fogging is not only useful amid a viral outbreak, such as Covid-19. It is also a highly beneficial process for pest control and contract cleaning. The machines can be filled with non-toxic pesticides and environmentally-friendly cleaning solutions. The mist is then sprayed indoors to effectively control insect and rodent populations, as well as thoroughly clean a space.

Businesses in the hospitality and food industry can particularly benefit from thermal fogging. Kitchens and guest rooms often attract unwanted pests, such as cockroaches. Likewise, food retailers, manufacturers and distributors often find a population of rodents moving in. Fogging will ensure that storerooms and working spaces are adequately cleaned with non-toxic chemicals.

Thermal fogging has many advantages

Thermal fogging machines not only make it easier to combat pest invasions and thoroughly clean spaces, but they are also effective in preventing mold outbreaks and eliminating odours. They help to keep rooms spotless and in top condition - something that is often taken for granted by businesses, restaurants, factories and retailers.

Here are some more advantages of thermal fogging:

  • Easy to use - thermal fogging machines create a spray of fine mist that can be directed into all corners of a room. It is easy to control the flow and spread of the mist to ensure that all surfaces within a space are coated in the cleaning solution. Thermal fogging machines work like steam irons and are easy to become acquainted with.

  • Maximum coverage - The minute droplets of cleaning agent, disinfectant or pesticide that are sprayed out of the machine spread out in the air. This mist floats around the room for a while before slowly settling on all surfaces. The high density of tiny droplets emitted from the fogging machine ensures maximum coverage within a space.

  • Cost-effective - Thermal fogging equipment is the most affordable, costing less than ultra-low volume (ULV) and cold foggers. This reduces the cost of the fogging service provided by the contract cleaning company. Professional services using other types of fogging machines will be more expensive, that is why IWESCO has opted for thermal fogging equipment.

  • Efficient results - Thermal fogging machines are more efficient than the other types. They consume less energy to spread the same volume of mist within a room. They also require a lower concentration of cleaning agents, disinfectants or pesticides, which results in further cost savings for the client. This also means that less liquid is needed to spray an area.

  • Visible fog - Cold fogging equipment emits an invisible fog that makes it difficult to see which areas of a room are being covered. Similarly, ULV foggers create a mist that is very hard to see. Thermal foggers use heat to vaporise the liquid solution which creates a thick and visible fog. The operator can then direct this fog into all spaces of a room and ensure optimum results.

IWESCO is on-hand to provide businesses with fogging solutions in the wake of the Covid-19 lockdown. As companies start to reopen their doors, it is vital to ensure that their offices, outlets, storerooms and client spaces are disinfected and cleaned regularly. For more information on our thermal fogging services, or to get a quote, please contact one of our expert staff members in your city.


IWESCO offers specialised cleaning and waste control services to industrial and commercial customers in South Africa. These services are aimed at minimising our customers’ impact on the environment. Our services also include pest control, garden maintenance, fogging and disinfecting. Our staff are highly trained to offer the most professional services. IWESCO is a Level 2 B-BBEE supplier with ISO 14001 certification for environmental management.

We are a one-stop shop for all your contract cleaning and waste control needs and have a national footprint. Our head office is located in Tshwane but we can provide services to any industrial and commercial client in the major metropolitan areas around South Africa, including Johannesburg, Cape Town, Durban, Port Elizabeth, Mbombela and more.

For more information on our offerings and insights into the latest industry news, follow us on Facebook and LinkedIn.


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