Our Technology
Let's Work Together
According to the World Health Organization, the number of requests for FUV Light Sterilization Systems will surpass globally 325 million by 2030. This forecast creates demand and opportunity for the deployment of FUVC Excimer Light Sterilization Systems around the world. VendiGlobe Sterilization Systems protect our way of life against the growing number of viruses, bacteria and pathogens devastating the world population.
Whether you are on a cruise ship, airplane inside the sports facility, police detachment, elevator, workplace, healthcare facility, educational institution, airport, or just about any other business or animal farm our system will lower the level of airborne viruses, bacteria, or pathogens by 99.9 %. Our system destroys the chain of DNA. It is the perfect weapon for any mutation of viruses, bacteria, or pathogens.
Introduction to UVGI
Ultraviolet germicidal irradiation (UVGI)is a sterilization method that uses short-wavelength light in the ultraviolet spectrum to inactivate microbes. It was discovered in the late 1800s when sunlight was seen to hinder microbial growth. It was later found that the energy from the ultraviolet spectrum of sunlight was the cause of this phenomenon.
How does FUV-222nm excimer light radiation work?
Today we know that the specific frequency most efficient at stopping viruses, pathogens and bacteria, COVID-19 is at an FUV- 222nm excimer radiation. DNA has its absorption peak at 222 nm wavelength and very efficiently absorbs energy from excimer light at this wavelength. The high-energy photons disrupt and damage the DNA, leaving the microbes unable to reproduce as well as perform vital cellular functions. Unlike 254nm UV light, 222nm excimer light it is environmental friendly, no mercury and safe for humans, so it can be also used in occupied spaces.
What are FUV-radiation 222nm wavelength excilamps.
The term “excilamps” is used for ultraviolet lamps that emit ultraviolet light by the decay of excimer and exciplex molecules. Excilamps are sources of narrow-band ultraviolet radiation.
The first lamps of this type were developed in 1982 at the State Optical Institute, SI Vavilov, now Russia during the Cold War. Today, our Vendi222 222nm barrier discharge excilamps are widely used. The first lamps of this type were developed in 1982 at the State Optical Institute. SI Vavilov in Leningrad USSR ( now Russia). In these lamps, radiation is triggered by a barrier discharge generated by a high-frequency generator. The required wavelength is provided by the emission of inert gas KrCl molecules or halogenated inert gas compounds.
FUV-radiation mercury-free 222nm excilamps have a spectral peak at 222 nm wavelength and emit more than 99% of their ultraviolet radiation at this peak. 
Excimer refers to the bound excited upper state of a molecule that breaks apart when a photon is emitted. Resonance excites Excimer emission from its lamps with a proprietary RF power supply.
The lamp has a long bulb, which is made of quartz glass, which provides effective transmission of ultraviolet radiation. The flask is replaceable. It can be filled with various gas mixtures and provide operation on working molecules of KrCl (222 nm), etc.
The main advantages of excimer lamps over other sources of UV radiation:
- Specific radiant flux (W / cm³) of excilamps exceeds the indices of low-pressure mercury lamps, energy luminosity (up to 100 mW / cm²);
- Narrowband radiation spectrum;
- Exit to maximum power after turning on in less than 1 second;
- A variety of designs;
- Low heating of the lamp bulb. In foreign literature, excilamps are called cold emission sources.
- The service life of the lamps exceeds 10,000 hours
- Among the advantages of excilamps is the complete absence of mercury, since ultraviolet radiation is generated by a different method, which favorably distinguishes excilamps from mercury lamps.
- No HF- and other acids, no toxic organic solvents result from lamp use.
- NO FLUIDS- Process does not require fluids with consequent de-sorption and contamination problems.
- EMIT SINGLE PEAK -222nm (wavelength) radiation with high output in UV or VUV (Vacuum Ultraviolet)
- Can target specific biological and chemical particles.
- LOW ENERGY CONSUMPTION
- INSTANT START – Typically start in less than 1 millisecond.
- MINIMUM DAMAGE-FUV absorbed in 1-micron layer.
- Safe for humans and animals. Can be used in occupied spaces.
What Parameters Are Important?
There are two parameters of interest for FUV sterilization: intensity and dosage. Intensity is based on the power output of the light in the FUV spectrum. However, intensity is not a very important parameter in itself. It’s mainly used to calculate dosage. Dosage is the amount of FUV-radiation light the microbes absorb and will determine whether sterilization occurs. Stronger, higher intensity lights will sterilize faster, but lower intensity lights will also perform the same sterilization. It just takes longer.
UVF Dose = UVF Intensity (μW/cm² ) x Exposure Time (seconds)
Exposure time is how long the UVF light is ON and delivering UVF to a surface. Start with 5 or 10 seconds.
The result of this calculation will be a value expressed in μWSec/cm². An FUV-radiation excilamp with an intensity of 10 mW/cm^2 shone on a surface for 1 second will provide the same dosage as a lamp with an intensity of 1 mW/cm^2 shone on a surface for 10 seconds
In VendiGlobe, we’re able to exploit this relationship by using lower power, green energy, high-quality quartz excilamps that are safe for humans and animals in occupied spaces. We don’t use cheap off-shelf 254nm Low-pressure mercury germicidal tubes. UVC 254nm lamps can’t be used in occupied spaces as they can damage the eyes and skin.
How Do I Measure Disinfection?
To quantitatively evaluate disinfection, it’s important to measure the intensity and dosage. Measuring UV-radiation intensity is commonly done with a UV sensor of some type. This is often a photodiode sensitive to UV light.
Positioning the photodiode in the location of interest will provide a quantitative measurement of the ultraviolet light at that position. Multiplying the measured intensity value with the elapsed time from the last measurement will give the dosage. This dosage is accumulated, meaning it’s added to the sum of all the previous values, giving a total dosage. This dosage value can be used to determine the likelihood that a specific microbe has been inactivated.
For example, an influenza virus requires 10.2 mW*s/cm^2 of dosage to be 99.9% inactivated. Often a large margin of error, equivalent to a 5x to 10x increase in dosage is also applied to ensure the microbe is inactivated to a very high degree of certainty
Scientists behind the discovery of UVC light sterilization systems.
The study of the effect of radiation from 222nm KrCl and 207nm BrCl excimer lamps on microorganisms and chemical particles began precisely at Tomsk State University – at the Department of Cytology and Genetics, Tomsk University Russia under direction of prof. Sosnin – at the beginning of 2000. Thanks to these studies, it was found that, in terms of their technical parameters, excilamps are a very effective system for carrying out ultraviolet inactivation of viruses, bacteria and pathogens.
David Brenner directs the Center for Radiological Research at Columbia University, Irving Medical Center in New York City.
Over the past eleven years, Dr. Brenner and his team have been developing the use of FUV-excimer radiation to neutralize bacteria, bacterial spores, molds, yeasts, and viruses—including SARS-CoV-2. His research proved that FUV KrCl excimer technology is safe for humans and can be deployed in occupied spaces.
Another study published in September 2020 in the American Journal of Infection Control by researchers at Hiroshima University, entitled “Effectiveness of 222-nm ultraviolet light on disinfecting SARS-CoV-2 surface contamination”, found that 222nm UV excilamps eliminate 99.7% of surface contamination by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), the virus that causes COVID-19.
