Għarfien UVC

Id-dar>riżorsi>Għarfien UVC

Id-dawl UVC jista 'joqtol il-viruses u l-batterji?

Ħin: 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.

Sussegwentement, aħna nispjegaw fid-dettall what UVC lights are, how they work, their precautions for use and some commercial applications biex jgħinek tikseb fehim ċar.


uvc light sterilization


Wha is UVC light?


Kif nafu lkoll, Dawl tax-Xemx huwa taħlita ta 'enerġija tad-dawl fuq tulijiet ta' mewġ differenti.


It-tulijiet tal-mewġ ivarjaw minn 380 nanometru (nm) sa 780 nanometri (nm) huma msejħa dawl viżibbli, filwaqt li dawk lil hinn mill-firxa ta 'wavelength jissejħu dawl inviżibbli.

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 sa 400 nm

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

  • UV-B: 280nm sa 320nm

Jista 'jikkura mard tal-ġilda. Iżda wisq esponiment se jikkawża ħruq mix-xemx u anke kanċer tal-ġilda. U inqas minn 2% biss tal-UVB jistgħu jilħqu l-art.

  • UV-C: 200nm sa 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

Iktar ma tkun iqsar it-tul tal-mewġa, iktar tkun b'saħħitha l-enerġija, iżda iktar ma tkun dgħajfa l-penetrazzjoni, iktar tkun mgħaġġla l-għibien.


Function of UVC light

Għarfien Relatat: Liema dawl UV huwa l-aħjar?

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.

U l-valutazzjoni tas-suq saħansitra żdiedet minn 140,000,000 dollaru Amerikan għal madwar 500,000,000 dollaru Amerikan.

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.


Jekk id-doża tal-UV mhix biżżejjed, xi vajrusijiet biss jitilfu temporanjament l-attività, u bil-mod isewwu l-istruttura tagħhom stess.


  • 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.

Dan hu għaliex għandna bżonn nużaw trasportatur simili għal lampi tad-diżinfezzjoni ultravjola biex niksbu d-diżinfezzjoni.


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.

Allura ma nemmnux faċilment xi kumpanija tgħid "nistgħu joqtlu l-viruses u l-batterji", xi kultant huwa biss il-lingwa tal-kummerċ.

Irridu nirrealizzaw li biss l-effiċjenza, il-ħin u l-ispiża huma l-fatturi ewlenin fl-għażla tagħna ta 'lampi 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) Il-lampi tad-diżinfezzjoni ultravjola tradizzjonali huma kbar (mill-inqas 40cm għoli jew aktar), b'effiċjenza baxxa. Sors tad-dawl 1W LED jista 'bażikament ikopri biss 1 metru kwadru ta' spazju.


(2) Is-sors tad-dawl tal-biċċa l-kbira tal-lampi tad-diżinfezzjoni ultravjola fih merkurju, li huwa ħażin għall-ambjent u għas-saħħa jekk jinħeles.

(3) Il-biċċa l-kbira tal-lampi tad-diżinfezzjoni ultravjola huma lampi ta 'spettru wiesa' inklużi UVC, UVA, u UVB, li x'aktarx jipproduċu l-ożonu, li jwasslu għal sintomi bħal għeja, sogħla, tagħfis fis-sider, nawżea, u telf ta 'memorja.


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.


B'dan id-daqs, jista 'japplika f'ħafna tagħmir portabbli b'funzjonijiet ta' diżinfezzjoni:

(1) Wiċċ


Uċuħ ikkontaminati bħal kmamar u apparat tal-isptar, kmamar tal-għixien, ajruporti, u kważi postijiet pubbliċi jew oġġetti privati.


(2) Ilma


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.

Nistgħu nużaw soluzzjonijiet UVC fis-sistema tat-tisfija tal-ilma jew fis-sistema tat-twaletta.


(3) Arja


Purifikaturi tal-arja jneħħu 99.97% tal-partiċelli fl-arja, madankollu, il-filtri ma jneħħux mikro-organiżmi patoġeniċi żgħar, bħall-influwenza.

Nistgħu nużaw soluzzjonijiet UVC fis-sistema tat-tisfija tal-arja jew fis-sistema kummerċjali tal-kondizzjonament tal-arja.


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.


Artikolu Relatat: Il-gwida tax-xerrej aħħari fuq ix-xiri tiegħek tal-Lampi UV


Soluzzjoni effiċjenti UVC LED għal Minisplits


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