UVC light in nature is relatively weak at the Earth's surface because it is blocked by the ozone layer. Specialized technological devices can produce enough strong UVC light in circulating air or water systems to make them an inhospitable environment for microorganisms such as bacteria, viruses, molds, and pathogens. UVC rays can be combined with a filtration system to disinfect air and water.
UVC sterilization
Ultraviolet sterilization is a sterilization method that uses ultraviolet light (UVC) to kill or inactivate microorganisms by destroying nucleic acids and damaging their DNA, making them unable to perform important cellular functions.
UV sterilization is used in a wide range of applications, such as food, air and water purification. The application of UVC light for sterilization has been an accepted practice since the mid-20th century. It has been used mainly in terms of medical hygiene and sterile working facilities. It is increasingly used to disinfect drinking water and wastewater. In recent years people have found an innovative application of UVC rays in air purifiers.
The outstanding values of UVC sterilization method
No harmful and corrosive chemicals are used, but only ultraviolet light is used.
Does not give rise to carcinogenic byproducts or odors.
Extremely effective in inactivating a multitude of microorganisms
Extremely effective against drug-resistant pathogens such as methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Staphylococcus aureus (VRE).
Designed to provide a continuous sterilization environment even in the presence of humans.
Designed to ensure absolute safety for human health.
There is a need for safety standards for products using UVC technology
User risks of skin cancer from daily exposure to UVC rays at 6mJ/cm2 over 20 years are about 0.22% for light-skinned people.
Therefore, UVC technology products need to be designed according to safety standards, interlocks and sensors can be used to prevent human exposure to ultraviolet rays by accident or error in the operating process. Eye protection should be worn (repeated exposure causes redness and tearing, prolonged exposure to this ray can cause cataracts).