Chapter 1: About UVC

At the end of chapter one you should be able to answer:

What is UVC?

Is UVC safe?

Does UVC produce ozone?

How does UVC work?

How long has UVC been around for?

Does UVC disinfect against COVID-19?

What is UVC?
 

UVC is ultraviolet light with wavelengths between 200–280 nanometers (nm). Ultraviolet light is grouped into three categories based on wavelength; UVA, UVB and UVC. Light in the UVC wavelength is used for sterilizing surfaces, disinfecting water and destroying harmful micro-organisms in food and in the air.

UVC is Part of the Electromagnetic Spectrum
 

The human eye can only see visible light, but light comes in many other "colors". Radio, infrared, X-ray, ultraviolet and others are invisible to the naked eye because they have a shorter wavelength and higher frequency than the light our brain perceives as images. Infrared light for example is too red for humans to see, but it is all around us and even emitted from our bodies.

UVC Harnesses the Power of the Sun
 

The sun produces three types of UV light; UVA, UVB and UVC, however, we only experience UVA and UVB on earth's surface. UVC does not penetrate the clouds so it doesn't hit us here on earth. We recreated UVC sources on earth because of its anti microbial and anti bacterial properties.

UVC Does NOT Produce Ozone
 

Ultraviolet spectrum contains four wavelengthsL UVA, UVB, UVC and Vacuum UV — each operates at different energy levels and only one is capable of producing ozone (Vacuum UV). If you look at the graphic above, Vacuum UV operates in the 100-200nm range, where it is capable of producing ozone. UV-C reaches its optimal germicidal strength near 253.7nm. Because ozone may only be produced below 200nm, at 253.7nm, the germicidal wavelength does not generate ozone. UVCBOX products are safe, hypoallergenic and they do not produce any ozone.

What if I saw a product somewhere else that uses UVC and it produces ozone?

Sometimes you may see a product that says it's UVC but it produces ozone, this can happen for one of two reasons.

  1. The product does not use to correct wavelength which means its not actually UVC and is being misrepresented.

  2. The product uses UVC, however, it also uses something else that does produce ozone which is hazardous. 

How UVC kills COVID-19, flu, cold and all other pathogens 
 

UVC light kills all germs, bacteria and viruses. UVC alters the structure and the molecular bonds of micro-organism's RNA and DNA which is the “blueprint” they use to develop, function and reproduce. By destroying the organism’s ability to reproduce, it becomes harmless because it can't grow and spread. After UVC exposure, the organism dies leaving  no offspring. Hospitals choose UVC to sterilize their facilities because UVC is the only method that kills drug resistant 'superbugs' that other cleaners can't kill. Now you can have UVC sterilizing power at your workplace with UVCBOX.

CDC Successfully Tested UVC against COVID-19 in April 2020

UVC has been proven effective against the coronavirus family such as MERS as well as SARS and recently against SARS-COV 2 the virus that causes COVID-19. CDC tested UVC to disinfect Filtering Facepiece Respirators (FFRs) in hospitals from COVID-19. UVC was proven to safely and completely disinfect the masks, extending the life of disposable masks.

 

"Ultraviolet germicidal irradiation (UVGI), vaporous hydrogen peroxide (VHP), and moist heat showed the most promise as potential methods to decontaminate FFRs. Therefore, researchers, decontamination companies, healthcare systems, or individual hospitals should focus current efforts on these technologies."

Hospitals Use UVC to Prevent Viruses from Spreading 
 

UVC became widely adopted in healthcare after it was successfully used to disinfect the air and stop the spread of tuberculosis. As hospitals started to see drug resistant fungi and drug resistant viruses, such as coronavirus, there became an even more growing need for UVC. Today, UVC is considered as one of the the safest and most effective methods for killing all pathogens, including COVID-19.

In USA 1.7 million people a year go to the hospital and get an infection while there; 44,000 - 98,000 of them die from these infections. Hospitals that use UVC are dropping these infection rates up to 100%.

History of Key Discoveries in the Germ Killing Power of UVC Light

UVC's effect on germs has been very well researched for over 200 years by the United States government, NASA, Centers for Disease Control and Prevention (CDC), military and many universities like Harvard School of Medicine. 

 

1801 — Johann Ritter discovered ultraviolet light.
 

1877 — Downes and Blunt discovered the antibacterial effects of sunlight. They determined that shorter wavelengths of the solar spectrum were more effective at neutralizing bacteria.

 

1892 — Professor Marshall Ward determined that violet blue and ultraviolet portions of spectrum are biocidal.  

 

1903 — Barnard and Morgan validated that the UV spectrum from 226nm to 328nm are germicidal. 

 

1903 — Niels Finsen won the Nobel Prize in Medicine for using UVC light to kill tuberculosis.

 

1904 — Lorch developed the first UV quartz lamp.

 

1906 — UV light was first used to disinfect drinking water. 

 

1936 — Hospitals implemented the first overhead UV system.

 

1936 — First upper air disinfection units are installed in schools.

 

1940 — UVC light incorporated into air conditioning system.

 

1942 — Military installed UVC light in barracks for the protection of soldiers in the Army and Navy. 

 

1957 — Study conducted by Riley conclusively proved that UVC was effective for the control of tuberculosis. 

 

2009 — UVCBOX began providing medical sterilization before expanding into home and workplace disinfection.

2020 — CDC successfully tested UVC against COVID-19. UVC safely and completely disinfected FFR's from COVID-19.

 

Today  We are helping our communities recover by providing cost effective UVC technologies that protect you.

Great Job! Take a Break

It is very important to rest while learning. Did you know that the estimated attention span of a healthy adult ranges from 10 to 20 minutes. So, take a walk, take a nap, grab something to eat or watch an episode of your favorite TV show. Do what you need to clear your mind and then click here to continue.

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