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2,700 air purifiers in only three months: Learn more about how Trotec air purification systems were installed in classrooms and kindergartens in our case study.
Air purifiers, too, are now promising some return to normality. After all, coronaviruses do not stop at national borders. That is to say, even with highly effective vaccines, an extensive vaccination programme for the world population would be the absolute precondition for successfully combatting the spread of the virus. But that will take years. So it is necessary to establish technical solutions like air filters to curb the pandemic in the short term – and we need large numbers of them. This is not only an enormous challenge in terms of production, but also in terms of logistics.
According to the latest findings, the COVID-19 virus mainly spreads through aerosols, i.e. small droplets in the air in which the pathogens are found. Research has shown that people are mainly infected with the Sars-CoV-2 virus in rooms inside buildings. The rules of maintaining physical distance, washing hands and wearing masks were therefore complemented with the rule of ventilation in the battle against COVID-19. After all, without regular ventilation, the risk of infection increases, particularly in enclosed spaces.
However, ventilating areas containing large numbers of people by opening windows is not a long-term solution – especially during the cold season. This applies to schools, for example. As a result, health experts are not only arguing that the size of school classes needs to be reduced, but that air filters should be made generally available for schools. Special devices are now on the market and they can actually keep enclosed spaces, e.g. a classroom measuring 60 square metres with almost 30 pupils, virus-free.
The advantage of air purifiers – like the WOLF AirPurifier – is absolutely obvious when it comes to resuming normal school operations. What is urgently required is a verifiably effective hygiene concept for virus-free air in classrooms. However, gyms are also aware of the problem associated with ventilation – and the same phenomenon occurs at physiotherapists’ practices that treat ill people. The outbreaks of the COVID-19 virus at slaughterhouses should be a significant reminder to us all about how quickly production sequences or companies can be brought to a complete standstill as a result of chains of infection. Last but not least, the hotel sector requires answers in order to maintain normal comfort levels in hotels and alleviate any fears guests may have concerning the risk of infection.
‘These modern air purifiers, which are able to filter bacteria and viruses, generally make sense at places where people meet and where it’s not possible to provide adequate supplies of fresh air from outside through a ventilation system or by opening windows,’ says Maximilian Schmidt from WOLF. This naturally applies to classrooms or children’s day care centres, as well as to waiting rooms at doctors’ offices, laboratories, shared office spaces and conference rooms. It may also make sense to use air purifiers in many other areas that attract large numbers of people, e.g. the retail sector, beauty salons, nail studios or the catering segment. Air purifiers reduce the risk of infection and can make a valuable contribution to restarting the economy. Independent scientists have confirmed the effectiveness of air purifiers using real measurement data in practical tests1.
The compact WOLF air purifier was developed and designed so that it is immediately ready for use and can be put into service by the user without any complications thanks to its ‘plug and play’ technology. It just needs to be connected to the power supply using a normal two-pin earthed plug. As a result, it is possible to install air purifiers very simply without any reconstruction work. Delivering and installing the devices in a reliable manner, on the other hand, is an entirely different matter.
Spiekermann is fully aware that far more is involved than just transporting the units; it is necessary to set up and position these high-tech devices at their final place of use as part of extensive services for the final customer. To guarantee greater reliability, the device has to be anchored to the floor or a wall if the unit is intended for use, for example, in a school or in a so-called public space. ‘Transporting and delivering the product so that no damage occurs is therefore just one building block in our logistic services,’ Spiekermann adds.
Rhenus High Tech has had decades of experience in handling large devices. Installing and maintaining ATMs at banks is just as much part of its business as MRI or CT units at doctors’ practices, large numbers of copying machines at institutions and companies or even the bottle return machines in supermarkets or refrigerators in laboratories. The Rhenus project manager therefore emphasises, ‘When transporting air purifiers, we can also rely on our many years of experience in making preparations – for example, assessing the statics for the feasibility of a shipment in a building that doesn’t have a lift for heavy goods.’
While the Indoor Air Hygiene Commission at the German Federal Environmental Agency does not believe that air purifiers can replace adequate ventilation, they see them as an excellent additional element, particularly during ventilation breaks. It emphasises that their use makes particular sense in places where windows cannot be adequately opened, i.e. just about any area where coronaviruses can spread nowadays. What was formerly reserved for the extremely sensitive production of computer chips is now about to become part of our everyday lives: the use of highly efficient air filter devices.
Relying on an experienced logistics specialist here can pay off for manufacturers. ‘In particular, in the case of handling larger numbers of items, they can particularly make use of established structures and therefore participate in tender procedures, which would otherwise not be realistic for the manufacturer,’ says Rhenus Manager Spiekermann. ‘This scalability of the services is an enormous advantage. It is therefore all about expanding the business by means of access to a European-wide network. The manufacturer “only” has to ensure that it ramps up its production – its logistics specialist looks after the “rest”.’
Sars-CoV-2 or ‘severe acute respiratory syndrome coronavirus type 2’ is the official designation of the new strain of coronavirus. It involves a lung disease, which, according to what has come to light so far, is more contagious than flu viruses. COVID-19 has established itself as the official designation of the sicknesses triggered by the virus. They may involve severe symptoms like breathing problems and pneumonia. About ten per cent of those who contract the illness have to be treated in hospitals, some of them in intensive care wards.
The WOLF company has specially developed air purifiers for educational centres. The AirPurifier may be as large as a refrigerator, but it is extremely quiet – just about as loud as a laptop fan at 34 decibels during normal operations. At the same time, the device can purify up to 1,200 cubic metres of air every hour, about six times more than a normal classroom contains. So-called HEPA 14 filters (according to DIN EN 1822) are used; HEPA stands for high-efficiency particulate air/arrestance. HEPA H 14 filters effectively filter 99.995 per cent of viruses out of the air. Independent scientists have confirmed the device’s effectiveness using real measuring data in practical tests. Thanks to the complete logistics solution provided by Rhenus, delivery times of between three and five days can be offered. Order your WOLF AirPurifier now: www.wolf.eu/shop
At the Trotec Group, everything revolves around optimal air conditioning as well as air purification in the industry, in the leisure sector and in the construction industry. The air purification systems are available for purchase and for hire at favourable conditions. Whether prevention by means of air humidification, decontamination using ozone or hot air, hygienic air filtration of suspended particles and viruses or the identification of temperature-conspicuous persons: Trotec not only develops professional products but also suitable measuring technology for determining requirements, performing analyses and controlling for success. Optional accessories of air cleaners are also installed by Rhenus High Tech if ordered.
Whether sports equipment, complex medical technology or ATMs - sophisticated and high-quality goods must be transported and installed professionally. Information on further special services in this area can be found here.
You can obtain information about the new strain of coronavirus at: https://www.rki.de/DE/Content/InfAZ/N/Neuartiges_Coronavirus/nCoV.html
A study by the Institute for Fluid Mechanics and Aerodynamics at the University of the German Federal Armed Forces in Munich entitled ‘Can mobile air purifiers effectively reduce the indirect risk of catching SARS-CoV-2 through aerosols?’ can be found at: https://www.unibw.de/lrt7/raumluftreiniger.pdf?utm_source=baulinks&utm_campaign=baulinks
Article published: 23 April 2021 | Article updated: 30 March 2022
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