Ultraviolet rays have the most obvious impact on human skin and eyes. Short-term exposure of the human body will cause skin redness, itching, and allergic papules. Long-term exposure will cause serious damage to skin tissue. Sufficient doses of exposure may even cause skin cancer.
Ultraviolet rays are also very harmful to human eyes. Short-term exposure to large doses can make the eyes red, swollen, teary, and unable to open the eyes. Long-term exposure to ultraviolet radiation can cause cataracts and even blindness.
When using ultraviolet lamps, no one should be in the room, and the disinfection time is 30 minutes to 1 hour; avoid looking directly at the light source; families must wear protective glasses or sunglasses when operating disinfection lamps.
Extended information
The main principle of ultraviolet germicidal lamp is to penetrate the cell membrane of microorganisms and destroy the DNA structure of various germs, bacteria, parasites and other pathogenic organisms through ultraviolet irradiation. , destroy the nucleic acid molecular bonds, causing the bacteria to die immediately or be unable to reproduce, destroy and change the DNA (deoxyribonucleic acid) structure of the microorganisms, thereby achieving the purpose of sterilization.
When microorganisms pass through UV-C, the light penetrates the organism's cell nucleus and breaks the molecular bonds of its DNA. This damage or break prevents microorganisms from reproducing. Once lacking the ability to reproduce, the organism dies within a few moments and is unable to reproduce. Some airborne pathogens are more resilient to the effects of UV light than others. For example, viruses are easier to destroy than bacteria, and effective reduction of mold spores requires maximum amounts of UV light.
Airborne pathogens are invisible to the naked eye, and many are so small that they can easily pass through standard air filtration facilities. Adding UV air disinfection to the filtration equation can prevent the growth of even the tiniest microorganisms.
Ultraviolet disinfection is a physical method. It does not add any substances to the water and has no side effects. This is where it is superior to chlorine disinfection. It is usually used in combination with other substances. Common combination processes include UV H?O?, UV H?O? O?, UV TiO?, in this way, the disinfection effect will be better.
Baidu Encyclopedia--Ultraviolet Sterilization Lamp
Baidu Encyclopedia--Ultraviolet Sterilization Lamp