UV Light

With the enduring COVID-19 Pandemic people have become more self- aware of what they touch on a day to day basis. Due to this, there has been an surge in the public claim to sanitize everything that they come in commerce with, but using a liquid sanitizer or soap is not always a practical choice. UV-light is such a thing that can be used to sanitize products, without having a concern about the spoilage. 

Scientists have known about the fumigation proficiencies of ultraviolet (UV) light for decades. But there is a lot of questions like. What is UV-C? How does it work? Is it safe? Etc. so let me try and explaining the answers to those questions and more. UV-C also known as germicidal UV, Products tout pathogen kill rates higher than 99.9%. Because of their efficiency, they’re extremely useful for hospitals, medical labs, senior care centers, fire and police stations, airports, transit stations, schools, government buildings, office buildings, and hotels

What is UV-C light?

Ultraviolet (UV) light is a component of the electromagnetic range that falls in the region between visible light and X-rays. This invisible radiation embraces the wavelength range of 100nm to 400nm. UV light can be extra segmented and categorized into four separate regions:

• 100 nm to 200nm 

        Far UV or vacuum UV 

• 200nm to 280nm

       UVC- beneficial for fumigation and detection

• 280nm to 315nm

       UVB – valuable for medicinal, and medical applications.

• 315nm to 400nm

       UVA – useful for printing, curative, lithography, detection and medical applications.

It can deactivate pathogens like bacteria and viruses. UV-C exploits specific wavelengths of the ultraviolet spectrum, archetypally between 200 to 280 nanometers. The Illuminating Engineering Society (IES) recently unconfined a report on germicidal UV that says UV-C is the most effective part of the spectrum.

History of UV Sanitization.

Sanitizing with UV-C light has been a standard exercise since the mid-20th century. In fact, the 1903 Nobel Prize in medicine was granted to Niels Finsen for via UV light to fight tuberculosis. 

How does UVC kill Disinfection works?

As obvious by various research studies and reports, when organic creatures are observable to deep UV light in the range of 200nm to 300nm it is absorbed by DNA, RNA and proteins.

Absorption by protein can lead to rupture of cell walls and death of the organism. Absorption by DNA or RNA explicitly by thymine bases is known to cause inactivation of the RNA or DNA double helix components through the construction of thymine dimers.

It is broadly accepted that it is not required to kill pathogens with UV light, but rather apply enough UV light to avoid replication are orders of magnitude lower than mandatory to kill, making the cost of UV treatment to dodge infection commercially viable. 

Is UVC light safe?

Similar to the UV-A and UV-B rays from the sun, contact to UV-C can harm the skin and eyes. .As a basic instruction, germicidal UV lamps should not route when someone is closure. Only skilled labors should knob germicidal UV units and make sure the merchandise is turned off before execution maintenance.    But without more research into how humans’ tariff with this kind of light exposure, others think some questions are left unanswered. It’s important to be sure that these lights won’t injury workers who are upright underneath the bulb for entire shifts. so far, the indication maybe isn’t where it must be.