Disinfection ability of ultraviolet light

Ultraviolet radiation, also known as light emission, is actually an electromagnetic radiation that can be divided into different ranges.

 

We can distinguish the range of different wavelengths, which can be divided into three categories:

1. UVA is high wavelength or also known as black light. Its wavelength range is 315-400 nm, which is the largest part of the radiation falling into the earth's surface. Like other ultraviolet rays, it can destroy collagen fibers and lead to skin aging. It can also decompose vitamin A in the skin. It was previously considered less dangerous, but it can indirectly damage DNA by producing reactive free radicals. Therefore, it also plays a role in the development of skin cancer, temporarily tanning the skin by oxidizing melanin.

 

2. UVB is a medium wavelength radiation, which is effective in the range of 280-315 nm. Most of this radiation is absorbed by the earth's ozone layer. It is good for the human body because it promotes bone formation (vitamin D), otherwise rabies will occur. However, it can directly destroy DNA, making it the culprit of skin cancer risk! When our skin is tanned, it prevents tanning by producing melanin. Melanin absorbs UVA and UVB and converts radiation into harmless heat. The SPF only shows the absorption of UVB radiation because UVA does not actually cause tanning.

 

3. UVC is the so-called low wavelength or bactericidal radiation, and its range is 220-285nm. UVC series is one of the most powerful sterilization and disinfection lamps. The term sterilization refers to the destruction of pathogen DNA so that DNA cannot be copied. Although this alone cannot kill them, enough DNA damage prevents them from reproducing. In other words, as long as we use and protect correctly, we have a very effective tool to fight viruses and bacteria.

 

Understand the strong disinfection ability of UVC light

 

UVC technology is 100% chemical free. The biggest advantage of the so-called low wavelength radiation is that it will destroy the DNA of pathogens and prevent them from reproducing. The greatest advantage of UVC radiation is that it will not produce resistance, that is, microbes and viruses will not be resistant to treatment. In all cases, UVC radiation will destroy the most common viruses, such as SARS, influenza and even various coronaviruses.

 

UVC can also kill yeasts and molds. In other words, in most cases, it can achieve similar effects to the ozone generator. They perform well against bacteria, viruses, fungi and odors in the air and on the surface, and do not emit ozone, so they can wear goggles and provide adequate skin protection. If UVC disinfectant operates in a closed system, no additional protection is required because the equipment has preventive safety function.

Pathogens that spread in the air and adhere to the surface

 

Nowadays, UVC light has been used in many fields of medical care to disinfect the air in medical equipment, workplaces and rooms; The power of ultraviolet light can also be used in the food industry because it can effectively treat microorganisms flying on the surface and in the air. The US FDA (food and Drug Administration) has also approved the use of UVC light to treat food; Since the early 1900s, this technology has also been used for water purification; In Hungary, drinking water in several cities, including Budapest, is treated with UVC lamps.

 

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.

Keywords: UVC, UVC led, deep UV, UV sterilization, deep UV LED, light emission, water sterilization, water disinfection, air disinfection, surface disinfection