AboutAs a cheap and effective method of disinfection and sterilization, ultraviolet lamps are very popular. Many public places including hospitals, schools, restaurants, etc. are in use. However, ultraviolet rays can damage the eyes and skin of the human body, and the ozone generated during irradiation can easily cause headaches, chest tightness, nausea, and vomiting.
How do we use UV disinfection safely, the following issues need to be understood:
1. Can ultraviolet light kill the new coronavirus?
According to the Chinese New Coronavirus Pneumonia Prevention and Control Program (6th edition): The new coronavirus is sensitive to ultraviolet light and heat, 56 ° C for 30 minutes, diethyl ether, 75% ethanol, chlorine-containing disinfectant, hydrogen peroxide, and chloroform Effectively inactivate viruses.
2. How is UV disinfected?
UV-C sanitizer lamp is to use the ultraviolet light (UV-C) irradiation in the natural spectrum to directly damage the DNA chain of harmful microorganisms, so that it loses the reproduction and self-replication functions, so as to achieve the effect of sterilization.
3. Improper use of UV disinfection will cause any accidental injury?
Long-term exposure to ultraviolet disinfection lamps can cause severe pigmentation, rough skin, or aging of the skin. If the treatment is not timely, it may also cause precancerous lesions, such as more common skin cancer or cataracts.
Short-term exposure to ultraviolet disinfection lamps, corneal epithelial cells, and conjunctival tissues absorb a large amount of ultraviolet light, which can cause electro-optic ophthalmia. Patients may experience symptoms such as redness, dry eyes, and tearing. In severe cases, the eyesight may be damaged to some extent.
In addition, ozone generated by ultraviolet disinfection is prone to headaches, chest tightness, nausea, and vomiting.
4. How to avoid accidental injury using ultraviolet disinfection?
Actively promote publicity and education, and strengthen the training of personnel responsible for disinfection.
Strengthen the management of the use of ultraviolet disinfection lamps, and improve the rules and regulations for the use of ultraviolet disinfection.
Separate the installation of the ultraviolet lamp and the general lighting lamp, do not place the switches side by side and label them to distinguish them to avoid accidental opening. The situation allows the use of mobile or cart-type ultraviolet lamp irradiation for disinfection.
Strengthen the protection of individuals, such as wearing protective glasses and reducing bare skin exposure. People should leave the room during disinfection, wear goggles and protective clothing when necessary, and lock the disinfection room to avoid accidental intrusion by unrelated persons.
After irradiation and disinfection, turn off the switch and open the window for 30 minutes to ventilate before entering the room.