The bactericidal effect of ultraviolet light depends on the bactericidal dose, and is also affected by the type, intensity and time of use of ultraviolet bactericidal lamps. Ultraviolet radiation dose refers to the need for specific wavelength ultraviolet radiation dose when reaching a certain bacterial inactivation rate.
The UV dose formula is as follows:
Irradiation dose (mJ/c²) = irradiation time (s) ×UVC intensity (μW/cm²)
The larger the irradiation dose, the higher the sterilization efficiency, if the need for rapid and efficient sterilization, the output intensity of UVC UV germicidal lamp has become the main parameter to measure the sterilization effect. According to different types of microorganisms, UV sterilization time and dose are also different. Different bacterial species have different UV absorption peaks.
The dose of radiation necessary for the killing of various microorganisms
Under the condition of sufficient ultraviolet dose, the inactivated viral bacteria will not be revived, but under the condition of insufficient dose, many viral bacteria that are inactivated by ultraviolet irradiation can repair their damaged structures through the assistance of light. At the same UV dose, high intensity, short time or low intensity, long-term irradiation can be used to achieve the purpose of sterilization.
The intensity of UV germicidal lamp is related to its irradiation area and irradiation distance, the closer the distance, the higher the intensity; The greater the distance, the lower the intensity. The higher the UV intensity, the faster it kills bacteria. Taking into account the impact of different factors in practical applications, such as air loss, surface cleanliness, different bacteria have different resistance to ultraviolet light, etc., it is generally recommended to use high-intensity ultraviolet germicidal lamps in practical applications to ensure the germicidal effect.
After repeated testing and verification by authoritative institutions, the overflow sterilization module of Hechuan technology can kill 99.999% of bacteria (such as Escherichia coli, Staphylococcus aureus, Salmonella, pseudomonas aeruginosa, etc.) within 0.2 seconds; The invention patent of our over-flow sterilization module is to use the optical principle to rapidly increase the UVC strength (μW/cm²) in the product, so as to achieve very good sterilization effect in a very short time.
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Shenzhen Hechuang Hitech CO., LTD.
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Shenzhen Hechuang Hitech CO., LTD. is a National High-tech Enterprise, which has won a number of invention patent technology awards. We focuses on the Research, Development, Production and Application of UVC-LED Technology. It adopts innovative technologies of revolutionary optics and fluid science, which can kill bacteria and viruses in 0.2 seconds, with a sterilization rate of 99.999%. Hechuang Hitech provides safer, more efficient and more humanized sterilization module design for Water Air and Surface Disinfection products.
