Applying UV-C light to disinfect water, air and surfaces is more common that most people realise. Water treatment facilities, hospitals, laboratories, food manufactures and the like having been exploiting the power of UV-C germicidal irradiance appliances for over 40 years.
What are the primary benefits of our 222 UVC devices?
These devices facilitates no-fuss, easy, unattended and continuous sanitation of public spaces.
- They sanitise air and surfaces simultaneously.
- They massively reduce the use of harsh chemicals.
- They reduce the to store large quantities of highly flammable alcohol based sanitisers.
- They eliminate the harmful practice of fogging, misting.
- They are set and forget. All that's required is to install once and turn on.
- They are noticeable, thus deliver reassurance that the space is free of infectious micro-particles.
- No contaminated filters to replace that require disposal via expensive medical waste collection services.
- UVC bulb only requires replacement about once every two years.
- Capex is on-par with HEPA air cleaners, yet our devices cleans air as well as surfaces.
- Opex is negligible when compared to other sanitation and cleaning systems. Thus facilitating a Return on Investment within a very short period.
What is UVC?
UV-C is a the abbreviation of Ultra Violet light in the C section of the ultra-violet light spectrum.
UV light is made up of A, B & C spectrum light. A & B are commonly known as the spectrum of light responsible for sunburn and in cases of long term exposure, skin cancer. C spectrum light is also emitted by the sun, but filtered out by earth's upper atmosphere. UVC is therefore not naturally present at the surface of the earth. For this reason cellular organisms have not evolved natural immunity or protection against UVC.
Artificially produced UVC with wavelengths of 250 to 280 nm has traditionally been used to kill undesirable microbes. Mercury vapour excitation tubes being the most common form of UVC light emitter. In more recent times LEDs have been developed to produce similar outputs.
What is Far UVC?
Far UVC is shorter wavelength UV light in the range of 100 to 250 nm.
What is Filtered Far UVC?
Filtered Far UVC is the technology used in the products sold by Far UVC Australia.
Filtered Far UVC is a narrow band of UVC light in the range of 215 to 230 nm, where the peak power intensity occurs at 222 nm.
Why use Filtered Far UVC?
UVC light having a wavelengths longer than 230 nm is known to be as harmful to humans as it is to microbes. UVC light having a wavelengths shorter than 190 nm produces Ozone which is a powerful oxidant and harmful to humans.
Why is 222 nm UVC safe?
222 nm is safe for humans because is this wavelength of light is proven to not penetrate our body's outer layer of protection. As such it does not harm the eye or cause skin burns or cancer.
How are pathogens killed?
UVC is extremely effective at deactivating the DNA of a broad range of bacteria, protozoa, mold, viruses and infectious pathogen including coronavirus and multi-resistant organisms.
Pathogens - viruses, bacteria, mold and the like are simple organisms and have negligible or very thin outer membrane. This allows UVC light to easily penetrate the pathogen, its cells and thus damage its DNA/RNA.
Its effectiveness is based on how much UV radiation the organism absorbs. Hence UVC disinfection systems are designed to deliver the optimum amount of UVC energy in the shortest practical period of time. Since the potency of light declines as the distance between the source and target increases, in accordance with the inverse square law, it is important get the UVC light as close as possible to the microbes. Where this is not easily achieve the amount of time the microbe needs to be exposed to achieve deactivation needs to be increased.
How effective is Filtered 222 UVC?
The effectiveness of Filtered 222 UVC is defined by four factors;
- Power rating of the light emitter
- The distance between the light emitter and the target object
- The time the target is exposed to the light
- The type of microbe
All our products are selected and applied to achieve microbe inactivation effective levels of 99.9% and above. For many microbes and settings microbe DNA/RNA destruction effectiveness levels of >99.99% is achieved.
Does Filtered 222 UVC kill Coronavirus?
Yes, the products sold by 222 UVC Australia easily inactivates the SARS-Cov-2 virus and all its variants.
Does Filtered 222 UVC kill Flu viruses?
Yes, the products sold by 222 UVC Australia easily inactivates the Orthomyxoviridae family of viruses which cause the flu. It also inactivates Rhinovirus which is the main culprit behind the common cold.
David Brenner, A new weapon in the fight against superbugs: January 18, 2018
David Brenner, PhD, Higgins Professor of Radiation Biophysics and Environmental Health Sciences, Director of the Center for Radiological Research, Columbia…
David Brenner, COVID-19 Virtual Symposium: April 8, 2020
David Brenner, PhD, "Far-UVC light: A potentially safe and effective approach for reducing person-to-person SARS-CoV-2 transmission"
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Dr. Christy explains the data and promise behind Far UVC light and how it can be used to disinfect large…
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Conrad Kullman of Purple Haze FAR-UV Technologies discusses how his technology can help to stop the spread of COVID-19 by…
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