DELTRI+ POWERED BY BROCHURE2021 08 31
6 systemair
FAQ
How were the lters tested?
The Luxembourg Institute of Science and Technology (LIST) and an independent laboratory in France have
tested the reliability of the virucidal effect in three different ways.
• First, LIST did the following: The institute performed a Bacterial Filtration Efciency (BFE) on ltration materials and
devices designed to protect against biological aerosols, such as face masks, surgical gowns and air lters. As a result,
DELTRI+ has achieved a BFE of 99,8%.
• LIST tested the Viral Load Reduction (VLR) of the lter material following multiple standards. According to ISO10705,
adapted to account for an equivalent Coronavirus strain (MS2), the tests show a VLR of 99,21% after 12 months.
• A French independent laboratory tested according to EN18184, and test results prove a VLR of 99,999% after 1 hour.
The tests conrmed the lters’ effectivity following standard test requirements. A third test conducted by the same
independent laboratory ensures conformity with EN14476.
How does the virucidal treatment work in practice?
Substrate not
treated
Substrate treated with virucide
using plasma technology
Graft
virucide
Virucidal treatment in action
Inactivates
viruses
Activation of virucide
on the outer surface
Viruses land on the
treated surface
The virucide destroys the
genetic material of the viruses
Replication of the
viruses is blocked
The viruses are inactivated
and cannot survive
Contaminated air ow
Filtered air ow