UVC Virus Killers: Germicidal Lamps and Far UVC
Germicidal lamps are becoming more and more common as UVC virus assassins as a result of the current COVID-19 pandemic, which emphasises the necessity of employing efficient Infection Prevention and Control (IPC) techniques. The SARS-CoV-2 virus that causes COVID-19 may be killed with great effectiveness by ultraviolet (UV)-based technologies, which are potential IPC techniques.
The World Health Organisation, WHO, reported 761,402,282 confirmed cases of COVID-19 as of March 29, 2023, with 6,887,000 deaths in 229 countries and territories, and 102,697,566 confirmed cases of COVID-19 with 1,117,054 deaths in the United States.
Inactivation of the UVC virus and effectiveness in preventing the spread of disease
Businesses and consumers may learn more about UV light virus inactivation and how effective it is at halting the spread of disease by visiting the FDA's website. UVC germicidal lamps are designed to emit UVC radiation at the proper wavelength, which has been used for decades to effectively disinfect surfaces, water, and the atmosphere. Beta coronaviruses and numerous other viruses, including tuberculosis-causing bacteria, are all destroyed by UV-C light.
MERS, SARS, and SARS-CoV-2 Viruses are Destroyed by UV-C Light
Although coronaviruses are known to infect both humans and animals, they are a broad family of viruses that mainly cause mild-to-moderate respiratory illnesses in people. They can frequently spread in animals, but if a viral mutation occurs, they may then move to people and continue to spread there. Because of the surface protrusions that resemble a crown and give coronaviruses their name.
Although severe acute respiratory syndrome viruses (SARS-CoV), like the deadly SARS epidemic in 2002 and the Middle East Respiratory Syndrome coronavirus (MERS-CoV) in 2012, can be severe, certain coronavirus types can produce diseases like the common cold. Another virus that produces COVID-19 is SARS-CoV-2, or severe acute respiratory syndrome virus.
When used at the right wavelength and dose, ultraviolet light viral inactivation is quite successful in getting rid of the threat posed by coronaviruses, including the SARS-CoV-2 virus. Inactivating SARS-CoV-2 reproduction with UV-C irradiation is extremely successful, according to a research investigation; the UV virus's reaction is dependent on both the virus's concentration and the UVC dose. The findings of this study and several others demonstrate how susceptible to UVC light the SARS-CoV-2 virus is.
Viruses and other harmful pathogens are killed by UVC light.
The following outcomes of a research on UVC viral inactivation against numerous dangerous infections were reported by Biological Consulting Services in 2020:
Influenza A H1N1 decrease of 99.999%
Reduction of the SARS-CoV-2 virus by 99.999%
Reduction of the poliovirus LSc 1 by 99.99%
99.99 percent decrease in Methicillin-Resistant Staphylococcus Aureus (MRSA)
6 different Salmonella species, 99.99% decrease
When employing the correct UVC germicidal lamps, dose, and location (such as line-of-sight disinfection on a surface free of debris that might impact UV inactivation outcomes), UV virus eradication is quite successful. For best efficiency, manual cleaning techniques should also be used in combination to UV light viral treatment.
Disinfection of the UVC Virus in Surfaces, Water, and Air
Typically tailored to produce wavelengths at precisely 254 nm, UVC germicidal lamps have been shown to be very effective in destroying bacteria by penetrating their DNA. Far UVC lamps are becoming more and more common because of their excellent potency against germs and safety around people. Standard germicidal UVC lamps may be found in HVAC systems, upper room ultraviolet germicidal irradiation (UVGI) systems, and other disinfection equipment like UVC robots programmed to run around vacant patient rooms or hospital halls. These lamps should be used in empty environments.
To achieve efficient germicidal qualities, it is vital to collaborate with a skilled ultraviolet lamp designer because not all UVC germicidal lamps are made equal.
