Eolas UVC

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An féidir le solas UVC na víris agus na baictéir a mharú?

Am: 2020 04-21-

For decades, scientists have been devoted to the research of UVC light for disinfection, especially when the UVC market is huge and the human pursuit of health is more important than ever before.


More and more reports indicate that UVC light products can kill viruses and bacteria higher than a 99.9% rate, which directly leads to the crazy purchase of UVC products.


But in fact, few people know exactly what UVC light is and whether UVC light is useful for sterilization.

Ansin, míneoimid go mion what UVC lights are, how they work, their precautions for use and some commercial applications chun cabhrú leat tuiscint shoiléir a fháil.


uvc light sterilization


Wha is UVC light?


Mar is eol dúinn uile, is meascán de fhuinneamh solais ag tonnfhaid éagsúla é Solas na Gréine.


Tugtar solas infheicthe ar na tonnfhaid ó 380 nanaiméadar (nm) go 780 nanaiméadar (nm), agus tugtar solas dofheicthe orthu siúd atá níos faide ná raon an tonnfhaid.

Ultraviolet light is a type of invisible light ranging from 10 nm to 400 nm. And the function of UV light depends on the range of wavelength.

  • UV-A: 320nm go 400 nm

It makes up the majority of UV light reaching the Earth. And it can damage our skin.

  • UV-B: 280nm go 320nm

Féadann sé galair craicinn a chóireáil. Ach beidh an iomarca nochta ina chúis le dó gréine agus fiú ailse craicinn. Agus ní féidir ach níos lú ná 2% de UVB an domhan a bhaint amach.

  • UV-C: 200nm go 280nm

It is particularly good at sterilizing. But its penetration ability is very weak. Before reaching the ground, all UVC light will be absorbed by ozone in the atmosphere. That means, standing under the sun is useless for sterilization.

  • In summary: UV light Rule

An níos giorra an tonnfhad, is láidre an fuinneamh, ach is laige an treá, is ea is gasta an cealú.


Function of UVC light

Related Knowledge: Which UV light is the best?

Because UVC light can be used for sterilization, coupled with the epidemic environment, the market demand for UVC products can be described as Crazy now.

Agus mhéadaigh luacháil an mhargaidh fiú ó 140,000,000 dollar SAM go 500,000,000 dollar SAM measta.

The big question right now may be how does UVC light work and can it kill viruses & bacteria?


How does UVC light work?


Before the deep study of UVC light, I thought all sunlights have the sterilization effect. Bacteria and viruses will be killed by "sunburn" or heat.

But that's not the truth.


  • Sterilization Principle of UVC light


In fact, UVC light will destroy the DNA or RNA of the bacteria & viruses, without the use of chemicals, making them inactive and unable to reproduce.

Since the lifespan of single bacteria & viruses is very short, once they lose the reproduce ability, it means death. So the purpose of sterilization has been achieved.


In scientific research, it has been found that UVC light can use very little time to finish the disinfection process and make most microbes reduction up to 99.99%.


Research of UVC light

Based on this information, UVC light is believed to be quiet effective at killing viruses and bacteria.


However, the vitality of different viruses and bacteria are different. Some bacteria&viruses may be injured once they are exposed to UVC light, while others are not.


Mura leor an dáileog UV, ní chaillfidh roinnt víris ach gníomhaíocht go sealadach, agus ansin déanfaidh siad a struchtúr féin a dheisiú go mall.


  • Special requirements of UVC lights

At present, there are no specific figures to show how much UV dose flu viruses needs to be killed. Maybe 1,085 mJ / cm2 or 3,640 mJ / cm2 . Anyway, a huge number.

You may be wondering if we stand under the sunlight containing UVC light, can we be disinfected by it?

Unfortunately, the answer is no. Although the sterilization ability of UVC light is extremely strong, the penetration ability to objects (including air) is extremely weak. Before reaching the ground, all UVC light will be filtered out by ozone in the atmosphere.

Sin é an fáth go gcaithfimid iompróir atá cosúil le lampaí díghalrúcháin ultraivialait a úsáid chun díghalrú a bhaint amach.


Please pay attention to the fact that most UV lamps on the market are only designed to meet the common standard, that is, 40mJ / cm2 UV dose required for a 99.99% inactivation rate.


Study result of UVC light

Further considering the decay of UVC light in the air, those lamps make no sense for disinfection.

Mar sin ná creid go furasta mar a deir cuideachta éigin “is féidir linn na víris agus na baictéir a mharú”, uaireanta is í an teanga mhargaíochta amháin í.

Ní mór dúinn a thuiscint nach bhfuil ach éifeachtúlacht, am agus costas na bpríomhfhachtóirí inár rogha lampaí UV.


Are ultraviolet lamps containing uvc light safe?


Although UVC light can indeed kill viruses and bacteria, there are various problems with household ultraviolet disinfection lamps on the market:

(1) Tá lampaí díghalrúcháin ultraivialait traidisiúnta mór (airde 40cm nó os a chionn), ar éifeachtúlacht íseal. Go bunúsach ní fhéadfaidh foinse solais 1W LED ach 1 mhéadar cearnach de spás a chlúdach.


(2) Tá mearcair i bhfoinse solais an chuid is mó de na lampaí díghalrúcháin ultraivialait, atá dona don chomhshaol agus don tsláinte má scaoiltear é.

(3) Is lampaí speictrim leathan iad an chuid is mó de na lampaí díghalrúcháin ultraivialait lena n-áirítear UVC, UVA, agus UVB, ar dóigh dóibh ózón a tháirgeadh, as a dtiocfaidh comharthaí cosúil le tuirse, casacht, tocht cófra, nausea, agus caillteanas cuimhne.


Applications of UVC light

From this perspective, the main application scenarios of UVC light should be industrial types to maintain safe.


Applications of uvc light


To make better use of UVC light, we have developed a new lighting technology, which can make the UVC energy in a very small size with 3.5mm x 3.5mm without mercury.


Leis an méid seo, is féidir é a chur i bhfeidhm i go leor trealamh iniompartha a bhfuil feidhmeanna díghalrúcháin aige:

(1) Dromchla


Dromchlaí éillithe ar nós seomraí agus trealamh ospidéil, seomraí maireachtála, aerfoirt, agus beagnach gach áit phoiblí nó earra príobháideach.


(2) Uisce


Mercury-free UVC light is a clean and safe water disinfectant, UVC LED based solutions tackle these pathogens without impacting the water's smell, taste or mineral contents.

Is féidir linn réitigh UVC a úsáid sa chóras íonú uisce nó sa chóras leithris.


(3) Aer


Cuireann purifiers aer 99.97% de cháithníní aeriompartha, áfach, ní bhaineann na scagairí le miocrorgánaigh phataigineacha bheaga, cosúil leis an bhfliú.

Is féidir linn réitigh UVC a úsáid sa chóras íonú aeir nó sa chóras duchta aerchóirithe tráchtála.


How to use UVC light

All in all, UVC light can indeed kill viruses and bacterial if we choose the right system for specific applications.


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