UV – C efficacy against Coronaviruses, (COVID-19, SARS – MERS)
Our company has always been committed to preventing contamination and increasing safety by controlling cross transmissions in all areas: surface treatment, air quality, and water purification. UV-C is an established and reliable technology, but a solid know-how is required for effective and safe use. UV-C uses ultraviolet light to inactivate microorganisms, mainly by cross-linking thymidine nucleotides in DNA and uracil nucleotides in RNA, which block replication. UV-C systems are relatively fast and easy to use, leave no chemical residues and do not expose workers to harmful substances.
At this time there are no specific tests available on UV resistance of the Coronavirus SARS-Cov-2, but there are examples of scientific literature about the UV-C treatment of very similar viruses, such as SARS or MERS.
There is also evidence of the effectiveness of ultraviolet rays in disinfecting air and surfaces from microorganisms that are much more complex and difficult to treat than this virus in healthcare environments, such as C. Difficile, MRSA, or even more deadly threats such as Ebola and Legionella. (Kowalski 2009)
It is estimated that the SARS-CoV-2 virus can survive on surfaces for up to nine days, based on its similarity to SARS and MERS.
Standard disinfectants are effective against SARS-CoV-2, but to provide additional protection and defend against errors in the manual disinfection process, UV-C can be used to disinfect surfaces and equipment following manual chemical disinfection.
“ASHRAE” (American Society of Heating, Refrigerating and Air-Conditioning Engineers) recommends ultraviolet germicidal irradiation as a way to address disease transmission on COVID-19
Use of UV irradiation in air conditioning and air treatment systems has also been recommended for many years.
Light Progress UV systems for surfaces, air & water are already widely used in many sectors: hospitals, industry, transport networks and residential centers. For more information, see the HVAC products of our website.
At this time of great world crisis due to the effects of the spread of Covid-19, at Light Progress we are receiving a great number of requests from all over the world.
We know, however, that the difficult containment of this pandemic will hit all the countries, sooner or later, and anybody will have to face the same problems.
Furthermore, this kind of dangerous conditions are not unique, and we expect this global pandemic to presumably reoccur cyclically in the future.
We believe that sharing information on the solutions implemented around the world using Light Progress products would be useful, especially as many of our systems can safeguard people's health and enable healthcare professionals to work much more safely.