Hanau, 26. March 2021
WISAG building cleaning relies on innovative use of UV-C (UVGI) disinfection
WISAG building cleaning recently optimized its service with a disinfection step using UV-C light from Heraeus Noblelight.
New type of surface disinfection
In view of the Corona pandemic, customers attach even greater importance to hygiene and the experts at WISAG building cleaning, a leading facilities services and management company in Germany, observed a huge increase in demand for disinfection of surfaces. Common practice in commercial building cleaning is wiping surfaces with disinfectant solutions. This wet disinfection method reaches its limits when not only documents and stacks of paper are affected, but also sensitive electronics, displays and keyboard surfaces.
In its search for innovative as well as environmentally friendly disinfection methods, WISAG building cleaning contacted the UV experts at Heraeus Noblelight. A study by the University Hospital in Tübingen had already shown how efficiently Soluva devices destroy SARS-CoV-2 viruses on surfaces. A demonstration of the Soluva UV disinfection convinced a team from WISAG’s work preparation and occupational safety group. This resulted in the first order of Soluva handheld devices for use at customers and in the company's own branches.
This makes WISAG the first facility services company to use the innovative Soluva handheld devices on a large scale. WISAG put together disinfection kits containing the Soluva handheld devices, the necessary protective equipment, UV test strips and also extra batteries, gloves and visors. The cleaning personnel receive training on the safe and effective handling of the Soluva devices before the first use. In the field, the surfaces in a freshly cleaned office are quickly and easily irradiated with UV-C light using a Soluva handheld device. Within a few seconds, this reliably destroys germs at a workstation. A UV test strip helps to ensure the required adequate dose.
Christian Faupel, Technical Manager Operations at WISAG facility services Holding GmbH & Co. KG, says, "We have been focusing on sustainability in building cleaning for years, for example with environmentally friendly, ecologically degradable products. In the area of disinfection, however, there have been few ecological alternatives up to now. With the new UV-C disinfection, we can now save large quantities of disinfectants."
The cleaning teams are currently gathering their experience in UV-C disinfection of offices and commercial buildings, and are looking at other possible applications, such as cleaning medical clinics and doctors' surgeries.
UV-C (UVGI) light is very effective against germs
Viruses, bacteria and other microorganisms spread through tiny water droplets in the air, so-called aerosols. Germs can survive for a long time in the air and on surfaces, especially in rooms with many people such as waiting rooms, offices, conference rooms and other commercial spaces.
UV-C light is very effective against viruses, bacteria and fungi. It can easily destroy viruses like the SARS-CoV-2 virus and its mutations since they have only a thin lipid (fat) layer. The UV-C light easily penetrates this layer and destroys the virus immediately.
UV-C disinfection with Heraeus Soluva equipment offers many advantages -- it is free of chemicals, does not require constant filter changes, requires little maintenance, produces no ozone or by-products, and no uncontrolled UV-C light escapes. Germs cannot build up resistance to UV-C disinfection.
For the first time, using an elaborate scientific application test, the renowned Fraunhofer Institute for Building Physics confirmed the effectiveness of air disinfection with closed UV-C air purification units under real conditions. Heraeus UV-C air purification units can reduce the virus load in closed rooms by over 99%. Further tests, such as with the Hygiene Institute biotec and the University Hospital Tübingen, also confirmed the disinfecting effect of UV-C light.
The disinfection effect of UV-C (UVGI) light has been proven in several studies .