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5.
Frequently Asked Questions
1.
What does your device do?
Our product is a
wearable UV air purifier
that creates a clean air zone around the
wearer’s face without covering their face or restricting their breathing.
2.
How does it work?
It uses UV-C light to inactivate airborne pathogens (viruses, bacteria, fungi, etc.). UV-C is
a specific range of invisible light that has been known to have disinfectant properties for
decades. UV-C radiation destroys the genetic material of the pathogens to the point
where they are unable to reproduce or multiply.
3.
Is your device effective against SARS-CoV-2 (COVID-19)?
The effectiveness of our disinfection module has been independently tested for
S.
aureus
and
E. coli
bacteria, resulting in 2.5 and 2.6 log reduction respectively (99.68%
and 99.89%) at 30 l/min throughputs. A UV-C LED manufacturer has run tests comparing
necessary light intensities to inactivate 99.9% pathogens and found that a similar UV-C
light dose was needed to inactivate both
E. Coli
bacteria and SARS-CoV-2 at 265 nm
https://www.stanley-components.com/en/uvc_technology/
). Other tests have also
shown that UV-C light is effective at inactivating SARS-CoV-2 (COVID-19).
4.
UV light can be dangerous. How do you make sure that the device is safe?
Our parent company AS Ldiamon has over a decade of experience with optics and UV-C,
and also meets the standards for an ISO 13485:2016 certificate, meaning they are
internationally certified to manufacture and handle medical devices. Our device is
carefully shielded to be fully light-sealed, so no UV-C light can escape from the device.
Additionally, we have added numerous protective measures to ensure the safety of our
device.
5.
UV light can produce ozone. Does your device produce any ozone?
Absolutely not. While at some wavelengths the energy of UV light is able to produce
ozone, this only happens at below 242 nm. The LEDs in our device emit a very narrow
range of UV-C light at 265 nm, which will produce no ozone. Furthermore, at
wavelengths of 242-315 nm, ozone is broken back into oxygen molecules instead,
reducing the ambient ozone in the air
(
http://www.ccpo.odu.edu/SEES/ozone/class/Chap_5/index.htm
). We
have also thoroughly measured our device with ozone metres to ensure that there are no
ozone emissions.
6.
Is the device safe for kids?
Due to the size of the device, the device is not meant to be used by children under the
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