At present, the prevention and control of pneumonia outbreaks of COVID-19 infection have entered a critical period. Preventing the invasion of coronavirus is the focus of everyone's epidemic prevention. The "Pneumonitis Diagnosis and Treatment Program for #New Coronavirus# Infection (Trial Version 5)" states that the COVID-19 is sensitive to UV light. Researchers at the Chinese Center for Disease Control and Prevention during the SARS period found that irradiating the coronavirus for 30 minutes with UV light intensity greater than 90 μW / cm2 can kill the SARS virus. #COVID-19#, like SARS viruses, are single-stranded positive-strand RNA (ribonucleic acid) viruses. Therefore, theoretically and rationally using ultraviolet rays can effectively inactivate COVID-19.
The Role of Disinfection/ Germicidal UV Lights
#Disinfection UV Lights# belong to special light source products and emit ultraviolet rays (ultraviolet, UV) with a wavelength range of 100-400 nm. Among them, ultraviolet radiation in the 100-280 nm band used for sterilization is called UV-C. UV-C's 240-280m band is the most effective sterilization band. Generally, the Germicidal UV Light mainly refers to a UV light having a central wavelength of light radiation of 253.7 nm.
Studies have shown that #UV light# mainly kills microorganisms through radiation damage to microorganisms (bacteria, viruses, spores and other pathogens) and destroys the function of nucleic acids, thereby achieving the purpose of disinfection. The killing effect of UV radiation on bacteria and viruses has been proven on common bacteria and viruses. The working principle of UV sterilization and disinfection is to destroy the molecular structure of DNA (deoxyribonucleic acid) and RNA of microbial cells, cause growth cells and/or regenerative cells to die and achieve the effect of sterilization and disinfection.
The use of Disinfection UV Lamp for sterilization, as well as the wearing of masks and the use of alcohol or disinfectant to sterilize the environment and items, are the main measures to cut off the transmission of COVID-19. And the use of #Disinfection UV Lamp# is the same as wiping alcohol and spraying disinfectant, which is broad-spectrum virus killing methods, but there are great differences in the use and operation methods.
How to use Disinfection/ Germicidal UV Lights?
While using UV radiation to kill bacteria and viruses, special attention must be paid to the damage caused by its radiation to human skin and eyes. Therefore, when installing and using a Germicidal UV Lamp, while ensuring that its radiation dose reaches the germicidal effect, it must be used safely and scientifically and reasonably.
Under the condition of no one in the room, you can use the UV Germicidal Lamp pendant irradiation. It is best to use a portable UV sterilizer for short-range irradiation. The surface of the irradiated item should be directly irradiated with UV rays and a sufficient irradiation dose should be achieved. The irradiation time is not less than 30 minutes. After irradiation, open the window for 20 minutes.
Irradiation pattern and time. Under the condition of no one in the room, it can be directly irradiated by hanging or moving #UV Disinfection Lamp# to kill pathogens that may be attached to air suspensions and the surface of objects. When the indoor hanging type UV Disinfection Lamp is used for disinfection, the effective irradiation distance is not less than 1 meter. The irradiation time is not less than 30 minutes.
During use, the surface of the UV Disinfection Light should be kept clean. Generally, it should be wiped with alcohol cotton balls every 1-2 weeks. When the surface of the lamp tube is found to be dusty or oily, it should be wiped in time.
When sterilizing indoor air with #Disinfection UV Lamp#, the room should be kept clean and dry to reduce dust and water mist. When the temperature is lower than 20℃ or higher than 40 ℃ and the relative humidity is greater than 60%, the exposure time should be appropriately extended.
After irradiation, open the window for 20 minutes.
Notes on the use of Disinfection/ Germicidal UV Lights
Improper use of #Germicidal UV Light# can easily cause huge damage to eyes and skin. Therefore, we must attach great importance to the safety of use. When using it, we must ensure that it is used in unmanned conditions, and we must avoid exposure to the human body. At the same time, in order to improve the safety of the Germicidal UV Light, there are several ways to choose from:
Use the #Disinfection UV Light# with intelligent control. When the Disinfection UV Light is lit, when a person enters the work area of the Disinfection UV Light, the power can be cut off immediately to protect the human body from the UV radiation.
The time setting device is used to set the working time of the #Germicidal UV Light#. It will be automatically turned on when no one is in use and automatically turned off when disinfection is complete.
The remote control device or wireless networking control method is used to realize remote control of Germicidal UV Lamp.
In addition, when installing and using UV Disinfection Lamp, it is recommended to consult a professional to ensure that the spatial arrangement of the UV Germicidal Lamp meets the requirements for sterilization and disinfection.
We all have a responsibility to curb the spread of the COVID-19. In daily life, "going out, not having meals, washing hands frequently, and ventilating more" is still the least costly and effective way to prevent epidemics. Facing the epidemic, we must scientifically prevent and treat it. When using UV Disinfection Light for sterilization, we must scientifically and reasonably regulate it, and we must attach great importance to safety. At the same time, we must comprehensively consider ultraviolet radiation sterilization and high temperature, alcohol, disinfectant and other The practical comparison of sterilization methods. In the face of scientific epidemic prevention, every detail and link deserves attention and re-emphasis. This is responsible for one's own health, as well as for others and society. As long as we strengthen our confidence, help each other, scientific prevention and control, and precise policy implementation, we will certainly overcome this epidemic.