How does UVC light work?

UVC light is particularly effective in air, liquids, and on surfaces. All bacteria/viruses/fungi that have either DNA or RNA can probably be disinfected with UVC, but there is a big difference in which dose of UVC is required.

When bacteria or viruses  are exposed to UVC light, UVC photons destroy the hydrogen bonds in the DNA or RNA. It prevents the cell from being able to reproduce and it will be inactivated and then die.

UVC technology has been documented for more than 100 years and therefore there is a large amount of scientific material that can be used for dose calculations. It is also known that the optimum wavelenght for disinfection is 264nm, which is why you aim for lamp peak as close to the wavelength as possible.


UVC does not care about temperature and pH

UVC light is powerful because it works in cold and warm environments, whether the bacteria are in solid, liquid or airborne form. Therefore it is a really good match for many disinfetion needs, where we like to avoid contactc, chemistry and waiting time.

In fact, you can not overtreat with UVC light, and should there be particles that hide bacteria from the light, a low-grade treatment can not give a risk of mutation or resistance.

However, it is important to choose the right type of UVC light for the task, as our product palette contains bulbs that perform optimally in the different environments, such as cold, warm, humid or dry climate.


Alone or with other?

The UVC light can easily solve a large number of disinfection tasks alone, but – it is light and therefore particles, dirt and dust must be removed or treated. We make systems with air ventilation, where surfaces on items are “flushed” with air, which is filtered and recycled in closed systems. We also make combination solutions where the UVC lamps are the last part of a washing and cleaning process, and ensure a completely clean end product, without basis for unfortunate growths. Completeley or partially chemistry-free.

Find our solutions in all industries, from biosecurity solutions in agriculture, to pharmaceutical production and food production in all categories.


Can we help?

If you have a need for disinfection, but have not seen the solution yet, call 22 680 680 or write to us.

We are always ready to make a NATDIS solution using UVC light, to exactly your needs and wishes.


Escherichia coli, Salmonella typhimurium, Penicillium roqueforti and all the others

We know them, and many others.

If you have a need for disinfection, we will try to identify which bacterium, virus or fungus we should treat. There is a big difference in how large a dose of UVC to use, to neutralize different microorganisms.

We usually know this and should we be in unfamiliar territory, a test setup can almost always make us much wiser on dose.

When we look at UVC dose, it is a question of what log value is desired in the disinfection – translated into ordinary language, log-1 is a 90% reduction of a given amount of organisms and a log-4 is 99.99% reduction.

In some environments log-1 is the right solution and in other environments we want 99.999%. You decide, but for every log reduction, the energy requirement is doubled and that is of course an important decisions.

UVC power is expressed in watts (W) and is often stated as watt per square meter (W/m²). When we talk about UVC dose, time must be included. Here we multiply W by time (t) in seconds and get joules per square meter (J/m²).


Natural Disinfection – completely without chemistry

When we use UVC correctly, we can get a very effective disinfection of liquids, air and on surfaces – completely without chemistry. There is no contact, no requirement for finishing (ventilation, etc.) as our lamps are ozone-free, and autonomous systems can be made with a high degree of monitoring and log options.

Same treatment everytime – completely safe.

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