Author: ciki Email: [email protected]
In recent years, UVC has received unprecedented attention, and a huge part of it comes from the same demand, can UVC be sterilized?
The principle of UV sterilization is to use high-energy UV light to break the DNA double helix chain, thus achieving the inactivation of bacteria and viruses;
UVC to achieve effective sterilization needs to meet certain requirements, pay attention to the wavelength of the UVC light source, irradiation dose and time, that is, it must be a wavelength of 280nm below the UVC band of deep ultraviolet light, for different bacteria and viruses to meet a certain irradiation dose and time, otherwise it can not be inactivated.
UVC is a band with the shortest wavelength and highest energy, and UVC-222nm and 254nm were the most effective wavelength.
Compared to chemical disinfection, the advantage of UVC is the high efficiency of sterilization, inactivation is generally completed within a few seconds, and does not produce other chemical contaminants.
Due to the destructive effect of UV light on biological cells, when using UV germicidal lamps should be careful not to directly irradiate the human skin, and not directly with the eyes to look directly at the lamp.
First, because ultraviolet light in the air penetration ability is very weak, it is difficult to achieve long-distance sterilization ability, so in use to try to be placed in the main germ removal location, such as the middle of the room, or easy to breed bacteria, 1.5m-2m away from the surrounding appropriate.
Second, when using to pay attention to the impact of the use of environmental sterilization effect. Usually, the temperature between 27 ℃ to 40 ℃ between the maximum output strength of ultraviolet light, sterilization effect is the best, in addition to ensure the use of a clean and dry environment, a large amount of moisture and dust in the environment, will have interference and weakening effect on ultraviolet light, reducing the actual UV intensity. When used at home, try to close the doors and windows, draw the curtains, close the lights, to ensure that the room is in darker conditions, more conducive to the germicidal effect of ultraviolet light, for easy to breed bacteria and other microorganisms, such as bed quilt, you can expand the bed quilt, increasing the contact area, more conducive to the sterilization of ultraviolet light.