Are UV disinfection lamps really useful?


Are UV disinfection lamps really useful?

Ultraviolet disinfection lamp is the core part of ultraviolet disinfection, and ultraviolet disinfection is currently a widely used disinfection method. In the long run, UV disinfection is commonly used in scientific research laboratories to kill microorganisms and ensure the absolute cleanliness of the environment. In recent years, there are also many indoor air ultraviolet disinfection equipment, which kills pathogenic microorganisms through ultraviolet radiation to ensure the safety of food and air. For some young children or the elderly with weak immunity, if the food or utensils are not clean, it is easy to cause illnesses from the mouth, causing intestinal health problems such as diarrhea, which is what we commonly call bad stomachs by eating.

UV disinfection

The question is, why do so many people choose UV disinfection?

Generally speaking, the commonly used physical disinfection and sterilization methods can be divided into thermal disinfection and light disinfection. Heat refers to the use of high temperatures to destroy the cell components of pathogenic bacteria to make them die. The direct heat conduction by air is called dry heat disinfection. Bacterial methods, such as burning and dry roasting, are conducted by air and water vapor. They are called moist heat sterilization and have stronger penetrating power, such as our commonly used boiling sterilization or pressure steam sterilization commonly used in laboratories. However, High temperature also means that there are requirements for the materials to be sterilized. Many things will be directly deformed or even scrapped at high temperatures, which is very dangerous.

Light disinfection is to use ultraviolet light in the light disinfection. The wavelength of 100~400 nanometers in the spectrum is ultraviolet (UV). Usually, it can be divided into four parts according to the wavelength (λ), respectively:

Long wave ultraviolet (315nm<λ<400nm, UVA),
Medium wave ultraviolet (280nm<λ<315nm, UVB),
Short wave ultraviolet (200nm<λ<280nm, UVC)
Vacuum ultraviolet (100nm<λ<200nm, VUV).

Most of the UVB and UVA bands are outside the absorption peak of microorganisms and cannot directly kill microorganisms. Under UVC irradiation, the structure of genetic material in microorganisms will be destroyed, and normal growth and reproduction will not proceed. It has the advantages of simple operation, no chemical residues, no choice of materials, etc. Therefore, UVC ultraviolet disinfection is a more ideal disinfection method than high-temperature disinfection, and it is also the most common method in health care institutions. Especially now that autumn and winter are about to enter, bacteria and some viruses are more sensitive to two physical disinfection methods: ultraviolet disinfection and high temperature. However, the scope of high-temperature inactivation is relatively narrow, and it is often only used for the inactivation of small high-temperature resistant items; UV disinfection can be used for disinfection in a variety of places. It has the advantages of simple operation, no chemical residues, and no resistance to microorganisms. It can be said to be the most widely used and most friendly disinfection method at present

UV disinfection

(SE-UV UV disinfection channel)

In summary, the advantages of UV disinfection and sterilization are that it is not only efficient in sterilization but also easy to operate without picking materials. As long as you put things in and turn on the switch, you can free your hands and wait for disinfection with peace of mind, which is convenient and worry-free. 


Are UV disinfection lamps really useful? - Safeagle

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