OSRAM AirZing™ PRO5040

Inactivating COVID-19 virus with OSRAM AirZingTM PRO5040

UV-C is proven as a mature technology in killing micro-organisms effectively. In the context of its effect on bacteria and viruses, UV-C effectively alters their DNA and RNA, destroying their ability to reproduce.

While UV-C does kill bacteria (bacteria are living organisms), it cannot technically ‘kill’ viruses (since viruses are not living organisms). So we use the term ‘inactivates’; UV-C effectively ‘inactivates’ viruses like COVID-19 when the virus is directly illuminated with UV-C at the effective amount level. Yet, UV-C is tremendously dangerous to our skin, and eyes.

How does UV-C inactivate viruses like COVID-19?

UV-C does not kill micro-organisms in the same way chemicals like chlorine or alcohol does, instead it damage the DNA inside the cell of the virus, eventually de-activating the function of each cell. UV-C rays at a specific wavelength of 253.7nm is readily absorbed by the genetic materials within each cell, and initiates mutations in the DNA genes. This DNA/RNA mutation inactivates the reproduction of the virus, achieving the intention of ’sanitisation’ as the virus can no longer replicate and cause disease.

In China, UV-C is used to sterilise whole buses.

Source of pictures

https://metro.co.uk
https://www.bbc.co.uk
https://www.centralbanking. com

UV-C emitting robots used to disinfect hospital rooms and surroundings

UV-C lights used in planes to disinfect seats and aisles

Source of picture:
CNET YouTube Channel

UV-C lights are also safe to use in food-processing

UV-C lights can be used in many other public spaces as well, including factories, schools and offices, gyms, etc.

It is also safe to be used within your living space

OSRAM AirZingTM PRO5040

The OSRAM AirZingTM PRO5040 is safe to be installed in working spaces due to its smart design:

  • Consists of an OSRAM HNS UV lamp with a precise 253.7nm UV wavelength output
  • Achieves up to 99.9% sterilisation efficiency
  • Provides 360º coverage area between 15m2 – 20m2, depending on the installation height,
  • IR sensor safety kit starts at a 30s delay
  • Immediately switches off once it detects people within the UV-working space.
  • Does not emit ozone
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Frequently Asked Questions
Can you use UV-C for direct human disinfection?

No. UV-C is damaging to the skin and to the eyes. DO NOT look at the UV-C light or expose any part of your body. UV-C should not be, and is not intended for, use as direct human disinfection.

How do operators remain safe when using UV-C lights to clean surfaces?
  • Like any disinfection system, UV-C must be used properly to be safe.
  • They all produce varying amounts of UV-C light in wavelengths of 200 – 280nm. UV-C light is much more energetic than normal sunlight, and can cause a severe sunburn-like reaction to your skin, and similarly, could damage the retina of your eye, if exposed.
  • Be aware of stray light from the UV-C source and avoid irradiation of reflective surfaces.
  • Suitable PPE should be worn at all times when there is a risk of exposure to the skin and eyes.
  • Never directly expose yourself to the UV-C light when it is on.
Can the products I find on websites such as LAZADA/SHOPEE be safely used for medical disinfection?

Devices sold on general marketplaces such as Lazada or Shopee are not regulated for their UV output, and devices sold as UV-C emitters cannot be guaranteed to perform as described. UV-C sources and devices should be purchased from trusted, reputable suppliers.

What is the UV-C Dose for inactivating the COVID-19 virus?

Due to the fact that the COVID-19 virus (SARS-CoV-2) is new, the scientific community doesn’t yet have a specific deactivation dosage. However, we know the dosage values for comparable viruses in the same SARS virus family are 10-20 mJ/cm2 using direct UV-C light at a wavelength of 254nm; this dosage will achieve 99.9% disinfection (i.e., inactivation) under controlled lab conditions. In real-life, the virus is often hidden or shaded from direct UV-C light, reducing UV-C’s effectiveness. To compensate, researchers are applying dosages of 1,000 – 3,000 mJ/cm2 to ensure 99.9% deactivation.

How long does the AirZingTM PRO 5040 take to disinfect a room?

The table below indicates how long it takes to disinfect an area with 1 lighting fixture. The calculated time can be decreased by adding the number of lighting fixtures. (E.g. by adding an additional light, the time it would take to disinfect 10m2 area can be reduced by 50%. Which means it would only take 12.5 minutes.)

LIGHTING FIXTURE HEIGHT
2.5m 3m 4m
10m2 = 25 minutes 10m2 = 30 minutes 10m2 = 40 minutes
15m2 = 37.5 minutes 15m2 = 45 minutes 15m2 = 60 minutes
20m2 = 50 minutes 20m2 = 60 minutes 20m2 = 80 minutes
25m2 = 62.5 minutes 25m2 = 75 minutes 25m2 = 100 minutes
30m2 = 75 minutes 30m2 = 90 minutes 30m2 = 120 minutes

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