Dry Fogging Using Huwa-San

Man fogging gym


One of the prevailing images of the Coronavirus pandemic is of operators in Hazmat suits spraying biocides on surfaces in attempt to eradicate the virus. This is a reasonable method for disinfecting outside spaces, but what about inside a building, where there is electronic equipment, perhaps paper, and difficult to access areas – under ledges, inside lampshades etc.?

Dry Fogging

Dry fogging is the best way of ensuring complete sterility inside a building. It is a process that takes place in the vapour (gas) phase. This allows disinfection to take place using a small quantity of biocide without wetting. For example, paper should stay bone dry throughout. It will not cause corrosion or problems with electrical equipment. The vapour will access all areas of the space including cracks and crevices.

Fogging always produces a guaranteed result: As long as the chemical has passed the AFNOR [1] test and sufficient volume is used, based on space, then sterility is guaranteed.

[1] AFNOR NFT 72-281 is a French test standard that is established as the standard method for verifying the effectiveness of airborne surface disinfection systems.


Where to Fog?

Dry Fogging will disinfect any space. Spaces such as hospital wards, waiting rooms in health centres, veterinary practices, and dentists have high bacterial and viral load. Schools and offices are good places for microorganism transmission. There is also likely to be a high microorganism load in gyms and leisure centre rooms.

Fogging presents a fresh start! Every time a fogging procedure is carried out the building surfaces become completely sterile. There is no chance of picking up a virus on your hand or clothing.

Office blocks where regular fogging is carried out see a reduction in absenteeism.

Fogging is used as a rapid method of disinfecting try on clothes in stores or for quickly recycling PPE

When to Fog?

How often should I fog?

The obvious answer is as often as possible. Fogging disinfects by micro-condensation on surfaces and this means that there will be a residual effect after fogging. Fogging will reduce maintenance disinfection. If fogging were to be conducted once per week on a Health centre surgery, it would be prudent to only disinfect high touch points like door handles.

Our recommendation would be that Healthcare premises should be fogged monthly. This would reduce reinfections in hospitals and reduce microorganism transmission in other Healthcare settings.

In gyms and leisure centres we would recommend weekly fogging.

We recommend fogging when a building is returned to service after being unused for a period or where there are obvious signs of mould and a smell of dampness.

Fogging can be carried out to suit the customer including after hours and at weekends.  It is most beneficial if the fogging process follows cleaning.

Regular fogging is important to help reduce absenteeism and will help keep high touch surfaces free from bacteria and viruses.

SafeSol have recently introduced a local, fogging service in South Tyneside.

man carrying out fogging

SafeSol have worked with Huwa-San technology for over 20 years and have more than 75 years experience in water treatment. We are happy to help with any queries and provide technical support .

Call 0191 4478008 or info@safesol.co.uk