Can UV light kill germs?
There are several types of UV light. They’re classified according to how much energy they have.
Types of UV light
UVA light has the lowest amount of energy. When you’re out in the sun, you’re mainly being exposed to UVA light. Exposure to UVA light has been linked to skin aging and damage.
UVB light sits in the middle of the UV light spectrum. A small portion of sunlight contains UVB light. It’s the main type of UV light that contributes to sunburns and causes most skin cancers.
UVC light has the most energy. UVC light from the sun is mostly absorbed in the Earth’s ozone, so you’re not normally exposed to it on a daily basis. However, there are various human-made sources of UVC light.
UVC light is the type of UV light that’s most effective at killing germs. It can be used to disinfect surfaces, air, and liquids.
UVC light kills germs like viruses and bacteria through damaging molecules like nucleic acids and proteins. This makes the germ incapable of performing the processes that it needs to survive.
Scientists are exploring specific wavelengths of UVC light that are safe for humans.
Most UVC lamps emit a broad spectrum of UVC wavelengths (200–280 nanometers) or a specific wavelength of 254 nanometers. Studies have shown that shorter wavelengths of UVC light (such as 222 nanometers) can also inactivate airborne viruses (including SARS-CoV-2) and other microorganisms. This wavelength of UVC light is often referred to as far-UVC light and may be safe to use in occupied spaces. In studies on mice and rats, no damage to the skin or eyes was found from long-range UVC light. However, more research is needed to verify that people can be exposed to this wavelength for a period of time without harmful side effects.
is UV Lamp Disinfection useful ?
It is also useful to use ultraviolet lamps for disinfection, but everyone should try not to use them too frequently during disinfection. It can be used once a week. If the home is relatively clean, there is no need to use ultraviolet lamps for disinfection all the time.
When using ultraviolet disinfection, people must stay away. Ultraviolet rays still have certain damage to human skin, which can easily lead to itching or allergies on human skin. , Although it is more convenient to use ultraviolet lamps to sterilize, but you still need to pay more attention to the use.
Ultraviolet lamp disinfection is of course effective. In addition to spraying alcohol, ultraviolet lamps are also used for disinfection in hospitals. If there is no disinfection effect, the hospital will not use this.
This UV lamp can also be used at home, but it is best not to stay next to the lamp when using it. For example, you can place the UV lamp in the room during the day. Of course, the door of the room needs to be closed, and people do not need to touch it directly. At present, there are many brands of UV lamps on the market. It is best to choose UV lamps produced by professional UV manufacturers, such as Ningbo Youwei LIGHT.
Of course, it is useful. Now many families in our country use ultraviolet lamps to disinfect all spaces in the home. However, when using this kind of lamps for disinfection, we must ensure that there is no one in the disinfection space, because ultraviolet lamps are harmful to the human body. It is especially harmful to people's eyes and skin. After a long time of irradiation, people's skin will appear red and swollen, and it will also induce cancer.
In addition to being used for disinfection in ordinary households, UV lamps can also be used in schools, hospitals, hotels, pet stores, factories, restaurants and other spaces.
Ningbo Youwei Optoelectronics is a professional manufacturer of high-quality ultraviolet germicidal lamp series products in China. The quality is reliable and the price is favorable. You can choose it once and use it for many years. You will not regret it.