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u
"When the UV light was switched on, viruses could no longer be detected in
the air. Taking account of the detection limit of 50 PFU/m³, a reduction of act-
ive viruses by ≥ 4.9 log ranges can be stated. This means an inactivation rate
of ≥ 99.99875 % …"
In addition to this, we are the first company that has tested its devices worldwide under
conditions close to reality in cooperation with the
Fraunhofer Institute
for Building
Physics.
For these tests, a classroom was imitated. Heated dummies simulated the pupils and
one of the dummies constantly exhaled a virus mist.
The findings of the Fraunhofer Institute are clear:
u
"On measurement day 2, samples of a duration of half an hour were taken and
within the scope of these investigations, it was found that the viruses were re-
duced by 99.31 % … already after 60 minutes of operation of the device."
When the nebuliser was switched off (i.e. no viruses were exhaled any longer), the Her-
aeus Soluva
®
Air W device was able to clean the room to a rate of 99.92 %.
Emissions of UV radiation were not measurable and it was shown that the air purification
unit had
not formed any by-products
(ozone, VOCs, aldehydes or ketones). All guid-
ance values of the German Federal Environmental Agency were complied with.
With this, we meet all the criteria for the use of UV-C air purification units defined on 16
November 2020 by the interior room air hygiene commission of the German Federal En-
vironmental Agency.
We are convinced that the UV-C technology is the best technical solution for cleaning
surfaces and air.
Have fun with your Heraeus Soluva
®
device.
Yours faithfully, Heraeus Noblelight
