The use of UV lamps for home disinfection not only uses high-energy UV light to interrupt the structure of viral DNA, making it lose its ability to reproduce and self-replicate, the UV lamp also produces ozone during the sterilization process, which itself can gradually destroy the structure of the virus from the outside in. The ozone itself can gradually destroy the structure of the virus from the outside in, so this can be considered a “double sterilization”.
Let’s dive right in now, and you can click on the question that interest you,
1 Does the UV lamp work on the COVID-19?
Among the many means of disinfection, ultraviolet disinfection lamp is less exposed to everyone in life. So, does the method of disinfection of the home through ultraviolet light works or not? What exactly should you pay attention to when using UV lamps? Let’s have a good chat below.
The first thing to be sure of is that disinfection with UV lamps is effective for the new coronavirus. As early as the “SARS” period, experts from the Chinese Center for Disease Control and Prevention Institute of Viral Disease Prevention and Control found that the use of ultraviolet radiation with an intensity of 90μW/cm² for 30 minutes can effectively kill the SARS virus. And in the “Pneumonia Treatment Protocol for Novel Coronavirus Infection” (Trial Version 8), it is clearly stated that the COVID-19 virus is sensitive to UV light. A recent study even found that the COVID-19 virus is correlated with the SARS virus, so theoretically, as long as UV light can be used scientifically and reasonably, it can effectively inactivate coronavirus.
2 What is the principle of UV lamp disinfection?
Simply put, it is the use of high-energy ultraviolet light to interrupt the structure of the virus DNA, so that it loses the ability to reproduce and self-replicate, thereby achieving the purpose of sterilization. And in the process of UV lamp sterilization will also produce ozone, ozone itself can gradually destroy the structure of the virus from the outside, to achieve the sterilization effect. Therefore, the use of UV lamps for home disinfection can be considered a “double sterilization”
3 In the daily use of ultraviolet lamps for sterilization work, the What do we need to pay attention to?
1、Applicable area and objects. Before using the UV lamp for disinfection, be sure to read the product manual carefully to see the applicable area and objects of the UV lamp, otherwise, it will lead to some parts of the room are not disinfected, therefore reducing the effectiveness of the use.
It should also be noted that some people want to disinfect their masks with UV lamps so that the masks can be reused. In fact, UV lamps do have a disinfecting effect on masks, but it is not recommended that you do so. Many masks (especially N95 masks) are now made of polypropylene melt-blown material, which is very sensitive to UV light and has poor aging resistance. After receiving ultraviolet radiation, the internal structure of the mask will be damaged, i.e. oxidative degradation, and the filtration performance will be significantly reduced.
2, irradiation distance. When using the UV lamp, we should also pay attention to the irradiation distance, that is, the distance from the lamp to the object to be illuminated. Generally speaking, the appropriate distance of the UV lamp is between 1-2 meters, so when using it, it is best to place the UV lamp to the center of the space. Since the disinfection feature of UV lamps is coverage, that is, the place covered by the light will be disinfected, so when using to minimize the blockage of light, some items (such as quilts, etc.) can be spread out to irradiate disinfection.
3, no one is in the room when you use it, open the window for ventilation after use. Although the UV lamp Although the disinfection effect is good, if used improperly will cause damage to humans, The first thing to do is to make sure no one is in the room. Therefore, the first thing to do is to make sure that no one is in the room when you use it and Close the windows and doors, and after enough irradiation time (depending on the intensity of the UV lamp used) (depending on the intensity of the use of UV lamps and different, the specific need to refer to the product instructions), the Open the windows and ventilate for a period of time before someone enters. The reason for this is that the UV lamp will produce ozone in the process of use. Ozone will be generated during the use of UV lamps, and the high concentration of ozone will cause dizziness, nausea, and other symptoms, and even cause respiratory pathology. And long-term wrong use of UV lamps can be harmful to the eyes, inducing conjunctival and corneal diseases, and in serious cases, even affecting vision. Not only that, if long-term Is irradiated to the skin for a long time, the light will appear red, swollen, itchy and other symptoms, and the heavy In serious cases, it can even cause skin cancer.
4 Conclusion
In general, the use of UV lamps to eliminate novel coronaviruses is still effective, but it should be noted that the UV lamps is limited, not only by the small irradiation range and coverage of the irradiation, However, it should be noted that the role of UV lamps is limited, not only has a small irradiation range and cover the limitations of the use but also improper use will cause damage to the human body. Therefore, we need to be extra cautious when using them.
Extraordinary times, the use of any disinfection requires learning the proper operation. UVC lamp as germicidal disinfection before use, it is important to remember to carefully read the product use instructions and use it within a safe and The scope of use within the guarantee of safety.
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