FEATURE
FOGGING VS. ELECTROSTATIC SPRAYING - WHAT IS THE DIFFERENCE?
Following on from his piece on fogging last year, James Nayler from BioHygiene looks at the difference between fogging and electrostatic spraying, the PPE required, and which option should be used when.
A lot of businesses are now taking extra precautionary steps to ensure the spread of Coronavirus is reduced. After a thorough clean of potentially contaminated surfaces, we are seeing fogging or electrostatic spraying applied more regularly than before.
So, what are the differences? And how do we decide which one to use?
Fogging The basic principle of fogging is to reach high level surfaces, the undersides of surfaces, ceilings and other areas that can sometimes be missed or overlooked. A fog has to consist of tiny micron particles that are less dense than the air around it, which naturally allows the fog to rise and target the high-level surfaces.
At BioHygiene, we are regularly asked questions by customers around fogging, with the most common being, “What are the PPE requirements whilst I am fogging?”, and the answers vary substantially depending on the type of machine is use.
A fogging machine can be either a stand-alone piece of equipment or a handheld device. If using the standalone option, the machine is left in the middle of a room and does not require the need to be moved. This type of machine is isolated by a source of power (either electric or pneumatic) from outside the room and will run for the programmed time.
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Unfortunately, a lot of people are misled into believing they need head-to-toe PPE when fogging this way, and you do not. The reason being is, if conducted properly, you are not in the room whilst the fogging is taking place, nor for at least an hour following the fog.
However, with a handheld application, PPE requirements are much greater as the user is in the same room as the fog, therefore, putting themselves at greater risk of contact with the sanitiser by ways of inhale, ingest, skin or eyes. As a minimum, we would recommend suitable eye, body, hand, and respiratory protection. You will be able to find advice on PPE from your local provider.
https://content.yudu.com/web/1jybr/0A1vxp9/TFMAug2020/html/
index.html?page=24&origin=reader
When a room is fogged, windows should be sealed, electronic equipment isolated and bagged off, and all doors should remain closed. A more detailed summary of fogging can be found within the ‘Facts About Fogging’ article found in the August edition of Tomorrow’s FM.
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