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What are the precautions for the effective use of ultraviolet germicidal lamps?

2021-03-25

What are the precautions for the effective use of ultraviolet germicidal lamps?

Ultraviolet light can damage biological cells. When using a UV sterilizing lamp, users must be extremely careful not to expose their skin—or especially their eyes—to direct UV radiation. Do not look directly at the UV LED lamp with your eyes.

Under the premise of ensuring bodily safety, how can we scientifically and effectively research and appropriately use ultraviolet germicidal lamps? It’s important to pay attention to the placement location, create a suitable usage environment, and also keep track of the duration of use.

First, ultraviolet light has relatively weak penetrating power in the air; therefore, it cannot effectively disinfect or sterilize over long distances. When using it, place the device as close as possible to key areas where disinfection is most needed—such as the center of a room or locations prone to bacterial growth—and maintain a distance of approximately 1.5 to 2 meters from surrounding objects.
Second, when using ultraviolet lamps, pay attention to how the surrounding environment affects their disinfection efficacy. Generally speaking, the output intensity of ultraviolet light is highest when the temperature is between 27°C and 40°C, resulting in excellent disinfection performance. In addition, ensure that the operating environment is clean and dry. Excessive moisture and dust in the environment can both interfere with and weaken the ultraviolet rays, thereby reducing their actual intensity.
Third, when using a UV sterilization lamp, it’s essential to ensure sufficient direct exposure time to ultraviolet light. Scientific research indicates that a direct exposure of 5 minutes is an appropriate duration for effective disinfection and sterilization. After 30 minutes, the lamp can achieve typical disinfection and sterilization effects. And when the direct exposure time reaches 60 minutes, it can eliminate the vast majority of airborne bacteria and other microorganisms.
 

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