Application of UV sterilization lamps in the COVID-19 virus

With the adjustment of epidemic prevention policies across the country to facilitate the travel and life of citizens, the Health and Health Commission has also released a new ten of the “Notice on Further Optimizing and Implementing the Prevention and Control Measures of New Crown pneumonia”. The prevention and control of the epidemic is further liberalized, and it is particularly important for personal protection and public places to disinfect and kill.

“Diagnostic Plan for Pneumonia in Infection of Coronary Viruses (Trial Fifth Edition)” also proposes that the virus is of ultraviolet and thermality. Because ultraviolet sterilization lamps are pure physical and non -contact disinfection methods, they are simple and convenient, convenient for operation, and easy to automate. Disinfection is easy. There is no secondary pollution and other characteristics, and the application scope is very wide.

Recently, I have also received some issues such as how to buy ultraviolet sterilization lamps and what to pay attention to when they have been received. I feel that it is necessary to share the knowledge of ultraviolet anti -virus with ultraviolet anti -virus.

The working principle of UV sterilization lamp
When it comes to how to kill the new crown virus for ultraviolet sterilization lights, I have to mention ultraviolet wire light.

The length of the ultraviolet light waves is 100nm-400nm, divided into three bands, UVA (315-400 nm), UVB (280-315 nm), and UVC (100-280 nm). The sun is the ultraviolet radiation source in our living environment. UVC and most UVB are absorbed by the ozone layer and atmosphere and cannot reach the surface of the earth. UVA is not so obvious by the atmosphere.

The strong fungicular ability is UVC. In real life, most of the UVC UV light is mostly achieved through artificial ultraviolet light sources. UVC band ultraviolet acts on virus bacteria. Cells’ ribosaccharotic acid (RNA) and deoxyrum ribosacuucleic acid (DNA) strongly absorb the energy of the band. Death to achieve sterilization and disinfection.

There are three important factors that affect the effect of anti -virus: UV light emits ultraviolet radiation intensity (UW/CM2), the distance between the irradiation surface and the ultraviolet light source, and the time of being illuminated. The greater the general power of ultraviolet sterilization lamps, the greater the strength of ultraviolet radiation. The smaller the thickness of the ultraviolet radiation, the farther the distance, the shorter the irradiation time, the worse the sterilization effect.

In theory, power is great enough to achieve “spike” bacteria. However, if the power is very large in reality, it will cause irreversible damage to human eyes and naked skin. It has been reported that the UV sterilization light installed in the school classroom was turned on and disinfected at night, and forgot to turn off the switch during the day. Students moved in such an environment, and there were symptoms such as skin burns, tears, and vomiting.

Therefore, the difference between civilian and medical (power size, reliability, different difficulty) of ultraviolet sterilization lamps. A large number of test data shows that the common 30W ultraviolet sterilization lamp can eliminate 99%of the pathogenic bacteria in 30 minutes at a radio distance of 1 meter.

Precautions for Ultimate Sterilization Lights
We know through the working principle of ultraviolet lights that the use process of ultraviolet sterilization lamps has certain scientific norms.

1. Ultraviolet rays have greater damage to human eyes and skin, so avoid light shooting eyes or naked skin when turning on, leave the scene as soon as possible.
2. Family disinfection general air and home items surface, try to disinfect in a closed environment as much as possible, try to get close to the surface of the items that need to be disinfected or stand in the center of the space to a certain height; too far make the disinfection effect worse or even ineffective.
3. Poor ultraviolet penetration force, which cannot achieve the disinfection effect on the blocking parts, and the surface of the disinfection items is exposed to the ultraviolet rays of the ultraviolet rays;
4. Try to ensure the duration of disinfection. It is generally recommended for 30 minutes; the environment will cause ozone during ultraviolet rays. In order to avoid ozone from damage to the human respiratory tract, the window is opened for half an hour after disinfection is completed.

Suggestion of UV lamp purchase
1. Try to buy a regular -time function, remote wireless Bluetooth opening, and the conveniently -free ultraviolet sterilization lamp generated by moving convenience,
2. Choose a business with a brand (most of our ultraviolet light detection instruments are bought by the laboratory of large brand manufacturers to monitor the product quality)
3. In terms of ultraviolet sterilization light sources, according to the purchase cost and subsequent use effects, we also recommend buying low-pressure mercury lamps in the 30W-60W interval as the ultraviolet sterilization lamp with light sources. Compared with LED light sources, low-pressure mercury lamp technology is more mature, the price is more priced, and the price is more priced. Low
4. The current epidemic prevention and control has entered a new stage, showing relaxation or even liberalization, but it does not mean the end of the epidemic. The new crown virus will coexist with humans for a long time. We do not panic or fear, scientific self -health management, and the first responsible person of our own health.

So how to test whether ultraviolet lamps are qualified?
Option 1: Economic convenient and fast solution:
LISUN LMS-6000UV Spectroradiometer UV-A, UV-B, UV-C and UV total Radiant Irradiance, UV hazard irradiance, UV spectrum, Dominant Wavelength, Peak signal, Start wavelength, End wavelength. Please click here to see the LMS-6000UV Test Report.

Option 2: High -precision laboratory equipment:
LISUN LPCE-2(LMS-9000CUV) UV Lamp Test System is used to test the UV lamp (light source) Spectrum, Radiant, Efficiency, CRI, CCT, UVA, UVB, UVC radiant and electric parameters. The system includes the following instruments:

1. LMS-9000CUV High Precision UV Spectroradiometer：
Measurement:
Chromaticity coordinates, Peak Wavelength, Relative Spectral Power Distribution, Radiant Power, ect.

2. CFS-1.5M Silica Fiber
Mainly used for optical signal transmission between LMS-9000CUV spectroradiometer and dark case.

3. CASE-UV036 Dark Case for UV Test
Provide testing environment for UV light source. The internal dimensions is 60*60*100cm

4. SLS-UV UV Standard Light Source with Power Source
The UV spectrum calibration system includes a UV standard light source and a Special power supply for UV standard light source. The standard light source is a deuterium light source. Deuterium lamp spectrum is continuous, it is an ideal UV light source for photometric analysis instruments. In order to ensure the stability of the light source and prolong its service life, the standard light source is equipped with a special power supply. 

Test report as below:

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Tags：LMS-6000 , LPCE-2(LMS-9000CUV)