Kappa Wavebionix®
virus protection filter


The first
filter element with
tested virus separation

Suitable for all ventilation systems

Logo: Siegel Zertifizierung

The respiratory protection
for ventilation systems

Turn your ventilation unit into a PROTECTION SYSTEM
that actively protects against possible virus transmission indoors.

Photo: MTA with mask

Kappa Wavebionix® is ​​a new and innovative filter element that has a highly effective separation of viruses and aerosols. 

The high filtration effect has been confirmed by an independent, accredited Austrian test laboratory with a "Viral Filtration Efficiency" of 97.2%.

During development, we made sure that the filter elements are able to be installed in almost any ventilation system. Therefore, it is possible to upgrade existing ventilation systems to a protective system against possible virus transmission without any modifications. As a result, the risk of infection indoors is reduced to a minimum.



Kappa Wavebionix®

virus separation of 97,2%.
(Tested with active viruses)

Kappa Wavebionix® are innovative filter elements for ventilation systems. Aerosols, fine dust, viruses and bacteria are separated from the air. They are the first filter elements for ventilation systems to be tested for virus separation efficiency with aerosoles and active viruses. The test confirms the high filtration effect with a viral filtration efficiency of 97.2%.

Minimised Risk 
of Infection
in Buildings

The indoor air quality plays a key role in our health. Above all because we spend 2/3 of our life indoors. Since we know that viruses are also transmitted through aerosols (finest droplets and particles in air) things have become even more complex. Because viruses and aerosols cannot be completely brought under control with the usual measures such as keeping distance, hygiene and face masks. Therefore, we have focused our research on minimizing the risk of infection indoors. Kappa Wavebionix® virus filter elements actively protect against infection with viruses and other pathogens through indoor air.

Ventilation Systems into
Protection Systems

The most effective way to deal with viruses, pathogens, aerosols and fine dust is to ventilate thoroughly. The easiest way to do this is using modern ventilation systems. Ventilation systems can reduce the virus concentration enormously. However, only if they meet the criteria for completely avoiding the transmission of contamination, are equipped with high quality filter elements and properly maintained. Otherwise, ventilation systems could represent a big risk. If contaminated exhaust air gets into the supply air of the same room or other rooms, viruses can be distributed throughout the room or building. Studies have repeatedly described this super-spreader effect caused by ventilation systems with the consequence of massive virus spreads. Ventilation devices can therefore be a cure or a curse.

Our approach is to ensure the highest possible air exchange in indoor spaces with purified air. Kappa Wavebionix® virus filter elements offer an efficient and economical solution for upgrading your ventilation systems to a protection system against viruses, bacteria and other microorganisms (filtering instead of circulation).

for Ventilation Systems

Once again, the coronavirus has shown us the connection between air quality and disease transmission. A high air exchange rate in combination with excellent filtration contributes to a significant risk reduction. Due to their excellent energy efficiency, Kappa Wavebionix® virus filter elements ensure that full air capacity is available with almost same energy requirements.

Fits in every
Ventilation System

Kappa Wavebionix® filter elements are made to order and fit into almost every ventilation unit. They can be used easily and without modifications instead of the previous pocket filters.

In most cases, ventilation systems have filter elements in the exhaust air and fresh air. In rare cases, there are additional supply air filter elements used. Particularly, older ventilation systems, but also modern ones are equipped with heat exchangers. They often have a recirculation damper and work with circulating air. In these cases, we recommend the Kappa Wavebionix® virus protection filter as an exhaust air filter. We always recommend the Kappa Wavebionix® virus protection filter as a fresh air filter. Using the Kappa Wavebionix® filter in this way, means not only virus protection, above all health for the people who are supplied with air. The Kappa Wavebionix® filter effectively removes aerosols and ultra-fine dust, with incomparable energy efficiency. If supply air filters are used, we recommend using the Kappa Wavebionix® filter in this filter stage.

(Corona)Virus or not – 
excellent air quality in buildings is a basic requirement

We spend around two thirds of our lives in buildings. Good reason, to focus on the air we daily breathe. The air quality in rooms is often polluted with numerous particles, such as aerosols, fine dust and pathogens (bacteria and viruses). Therefore, the air is inadequate. Kappa Wavebionix® filter elements offer an efficient and economical solution for the high-quality filtration of these harmful substances. As a result ventilation units can supply entire buildings with the most possible air quality. This measure lead to health, performance and well-being of employees and customers - even after Corona:


In accordance with general test standards, filter tests take generally place with so-called A2 fine dust (sand dust, dolomite dust). Ventilation filter elements, FFP2 or FFP3 masks are also tested by using this method. However, a filter test with sand dust has little meaningfulness about the separation of microorganisms or viruses. So far, there has been no test method for measuring viral filtration efficiency. Together with our research partners, we have developed a test procedure that enables testing under real conditions. As a result, viruses are applied to aerosols (as it happens in reality) and a filter element is exposed to the aerosol-virus mixture. We used an entire filter element and not just, as normally used, a material sample. Afterwards, the virus is analyzed in clean gas. The test is repeated several times to guarantee a valid result. The viruses used have a size of 28 nm (nanometer = 1 millionth of a millimeter) and are therefore five times smaller than the coronavirus. The test proves a viral filtration efficiency of 97.2%, which means that the separation of the SARS-CoV-2 virus is rated even higher.

Innovation and technology

Kappa Wavebionix® filter elements are revolutionary in separating viruses, bacteria, aerosols and fine dust. Despite highest filtration performance, they are exceptionally economical, because of a very low pressure loss.

Conventional pocket filter
REM-Image magnification 1000-times

Kappa Wavebionix®
REM-Image magnification 1000-times

Need an example?

The Kappa WavebionixTM C19 filter element can be bought for as little as
3 cents / person a day.

Initial situation:

  • Air volume 3.200 m³/h and 6-times air exchange
  • Room conditions of 2,70 m room height and 9 m² space/person
  • Annual filter exchange

Cost calculator

people supplied / filter element

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costs / person / year in €

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costs / person / day in €

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Kappa Wavebionix®
Virus protection filter

Any questions? Here are some FAQs

Zugrundeliegende Quellen und Studien:

Universität der Bundeswehr München; Christian J. Kähler, Thomas Fuchs, Rainer Hain. „Können mobile Raumluftreiniger eine indirekte SARS-CoV-2 Infektionsgefahr durch Aerosole wirksam reduzieren?“


Heinrich Pette Institute, Leibniz Institute for Experimental Virology; Thomas Günther, Manja Czech-Sioli, Daniela Indenbirken, Alexis Robitailles, Peter Tenhaken, Martin Exner, Matthias Ottinger, Nicole Fischer, Adam Grundhoff, Melanie M. Brinkmann. “Investigation of a superspreading event preceding the largest meat processing plant-related SARS-Coronavirus 2 outbreak in Germany”

International Journal of Multiphase Flow; S. Balachandar, S. Zaleski, A. Soldati, G. Ahmadi, L. Bourouiba. “Host-to-host airborne transmission as a multiphase flow problem for science-based social distance guidelines”

Cardiovascular Research (2020) 116; Philip Wenzel, Sabrina Kopp, Sebastian Göbel, Thomas Jansen, Martin Geyer, Felix Hahn, Karl-Friedrich Kreitner, Felicitas Escher, Heinz-Peter Schultheiss,Thomas Münzel. “Evidence of SARS-CoV-2 mRNA in endomyocardial biopsies of patients with clinically suspected myocarditis tested negative for COVID-19 in nasopharyngeal swab“


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