Is UVC deep ultraviolet harmful to human body and how to protect it?

发布时间：2021-09-02 14:06 来源：萤光创新

With the development of China's economy and the improvement of living standards, people will pursue a high-quality life and pay more attention to health. These needs will inevitably stimulate the development of UVC LED application market.

Deep ultraviolet light, especially at the wavelength of 275 nm, is easy to destroy the genetic components of bacterial DNA and make bacteria lose their reproductive ability. It has become one of the important physical sterilization methods.

Will ultraviolet rays cause harm to human body? How to protect? This is a problem that we are more concerned about. In fact, UVC deep UV does little harm to human skin, but it does great harm to human eyes. Almost 97% of the UV light with a typical uvc-led wavelength of 275 nm will be absorbed by the cuticle of human skin, more than 99.9% will be absorbed by the cuticle and epidermis, and a small part of the light will hit the dermis. Only when ultraviolet rays act on the dermis can they cause skin cell canceration. Therefore, beyond the working distance of ultraviolet sterilization, the effect of deep ultraviolet LED on human skin is very little; Of course, the cuticle of baby skin, including some human skin, is thinner, and its resistance to UVC ultraviolet rays is even worse. Human eyes are not protected by stratum corneum, and UVC ultraviolet radiation will lead to lens and corneal lesions. Therefore, it is forbidden for human eyes to look directly at the lit uvc-led lamp beads. Do not blindly fear UVC deep ultraviolet rays, because the damage caused by short-term skin irradiation can be ignored; Don't try your luck. Staring at the LED will certainly lead to eye injury.

In addition, the deep UV LED is small in size and easy to hide. Ordinary glass and plastic less than 0.1mm thick can fully absorb deep UV. Therefore, as long as the design is reasonable, the safety of UV LED products can be guaranteed.

In addition, most of the UV sterilization products sold on the market have made some safety protection designs according to the characteristics of the products. Generally, the possibility of harm to human body is relatively low. If the protection design of individual products is not in place, attention should be paid to avoid looking directly at the UV light source as far as possible.

In the production enterprises of UV disinfection related products, when they need to be exposed to UV due to the needs of production, it is best to wear protective equipment, such as protective clothing, protective mask and protective glasses, so as to avoid damage to human body.

Qingdao fluorescent Innovation Technology Co., Ltd. has a professional postdoctoral team, focusing on the research of ultraviolet sterilization application. After years of deep cultivation in the ultraviolet industry, the company has obtained a number of national invention and utility model patents. At present, a number of sterilization module products have been put into the market. For more details, you can browse the company website www.qdyingguang.com, contact the company for WeChat's official account.