Is ultraviolet germicidal lamp harmful to human body?
Ultraviolet germicidal lamp is an effective and convenient germicidal method. UV sterilizer can not directly irradiate eyes, skin, especially baby's skin.
Attention should be paid to the correct use of ultraviolet germicidal lamp:
① It must be electrified for 3-10min before application.
② Do not allow ultraviolet light to shine on the eyes to avoid injury.
③ When loading and unloading the lamp, keep the lamp clean, otherwise it will affect its ability to penetrate ultraviolet.
④ It is necessary to use gauze or absorbent cotton dipped in alcohol to wipe the lamp tube, so as to keep its surface clean and transparent.
UV sterilization lamp, also known as UV disinfection lamp, uses the UV light emitted by mercury lamp to realize the sterilization and disinfection function. UV disinfection technology has the incomparable sterilization efficiency with other technologies, and the sterilization efficiency can reach 99% ~ 99.9%.
What is the scientific principle of ultraviolet disinfection?
UV sterilization lamp mainly acts on the DNA of microorganisms, destroys the DNA structure, and makes it lose the function of reproduction and self replication, so as to achieve the goal of sterilization and disinfection. UV sterilization has the advantages of colorless, tasteless and chemical free.
If it is not used properly, it is easy to cause great harm to human body. If the exposed skin is irradiated by this kind of ultraviolet lamp, the light one will appear redness, itching, desquamation; the heavy one will even cause cancer, skin tumor, etc. At the same time, it is also the "invisible killer" of eyes, which may cause conjunctival and corneal inflammation, and long-term irradiation may cause cataract.
In many schools and kindergartens, in order to prevent the spread of infectious diseases, ultraviolet lamps are installed in the classroom for sterilization. However, it is stipulated that ultraviolet lamps cannot be turned on when there are people, and only after people leave can they be turned on for sterilization.
When installing the UV lamp, the novice electrician should indicate on the lamp of the UV lamp to attract the attention of the indoor personnel. When installing the control switch of the UV lamp, the switch controlling the UV lamp shall be separately installed in the lockable box, the key shall be managed and controlled by special personnel, and the management matters of the UV lamp shall be posted outside the box controlling the UV lamp to remind the use and harm of the UV lamp, which shall be supervised and managed by everyone.
There are some UV sterilization bags, which are convenient for sterilization of mobile phones or small articles. However, it is also necessary to pay attention to the above mentioned things.