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But it's a hoax. The ultraviolet light that What works against viruses is UV-C, which must act for more than five seconds so that it has an effect against viruses and bacteria, and misuse of it is harmful to our health. ## The ultraviolet light effective against viruses is UV-C and it must be used under safe conditions Not all types of UV are valid for inactivating viruses, as I already told you. we count in this article. The ultraviolet light effective against these is UV-C (shortwave ultraviolet light). According to the researcher specialized in Virology and Molecular Biology at the Max Planck Institute for Medical Research (Heidelberg, Germany), Mónica Berjón Otero, this light \"is too harmful to us. Therefore, its use should be restricted to expert personnel with the necessary security measures.\" Berjón explains also that "currently, the possibility of using a light is being studied UV-C that does not affect our cells (less powerful) to disinfect the surfaces, but its effectiveness is still in the research phase\". The pharmacist Marián Boticaria García published this video on her account. Twitter stating that "this does not remove the virus in 5 seconds. This is a SCAM that also puts health at risk by offering a false sense of security\". For his part, Pepe Alcamí, virologist at the Carlos III Health Institute (ISCIII) also emphasizes that "germicidal UVs are extraordinarily toxic, they can cause serious burns and alterations of the retina and even blindness\". In the case of such a lamp, \"most likely be a UVA (like the rays in the cabins) and then do not use it because it does not serves\". ## UV radiation machines need more time to act Pepe Alcamí affirms that he and his team use "UVC to destroy contamination in our grow cabins but we need at least 2 hours to sterilize them. Bacteria are more resistant than viruses but 5 seconds does not seem to be of much use.\" The researcher at the Laboratory Coronavirus at the National Center for Biotechnology (CNB-CSIC), Sonia Zuñiga, He also explained to Maldita Ciencia that ultraviolet "is the light that we put in the flow cabinets in which we work with viruses (after disinfect with a chemical agent) for between ten and twenty minutes\". Therefore, the time it takes for ultraviolet radiation to act against viruses is greater than five seconds. ## Ultraviolet light is effective against coronaviruses only to a certain extent spot Viruses are sensitive to ultraviolet light since it destroys nucleic acids and damages their DNA or RNA, leaving them unable to perform vital functions. However, as Sonia explained to Maldita Ciencia Zuñiga, although coronaviruses in general are sensitive to radiation ultraviolet, "the problem with UV light is that it produces a very superficial sterilization, so that (for example) if we have a solution with viruses, it is practically impossible to sterilize it and eliminate the virus completely, there is always some residual virus left.\" Zuñiga says that that radiation is used for \"smooth\" surfaces. Along the same lines, the scientist in the CNB-CSIC Biosafety Service, Fernando Usera, highlights that "ultraviolet light is a very good germicide [which destroys germs] but has no penetration, that's the problem\". ## Health warns that ultraviolet light devices can cause eye and skin damage The Ministry of Health has warned that ultraviolet light devices or ozone can cause eye damage, skin damage, or skin irritation. respiratory tract. In a document published on June 25, it refers to a review of the evidence that concludes that “there is no evidence about the effectiveness and safety of SARS-CoV-2 disinfection with disinfection devices radiation with ultraviolet light or ozone.” The available scientific evidence, according to the review, suggests that “both devices can reduce the virus population on a surface.” "Without However, it is unknown whether this reduction is sufficient to achieve disinfection,” he indicates. Health explains that to establish minimum security requirements applicable to these equipment and devices, “the UNE 0068 Specification (June 2020)”, which establishes requirements for safety for ultraviolet light devices used for disinfection of air of premises and surfaces. * * Updated on June 26 with warnings from the Ministry of Health. Automatically verify the hoaxes sent to you on our number whatsapp+34 644 229 319 ![](\\"../../../images/whatsapp-bro.png\\"/) Become cursed, Become cursed Join us and support us in our battle against lies Damned Hoax Methodology Rectification policy Join us and support us in our battle against lies Neutrality policy Join us and support us in our battle against lies Become cursed, Become cursed We need you to combat hoaxes and lies: only together we can stop it. At Maldita.es we want to give you tools to protect yourself against misinformation, but only with your support it will be possible. 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The portable ultraviolet light lamp eliminates coronavirus in five seconds