Covid-19 kis thoob qhov txhia chaw tau ua rau pej xeem paub txog UV tshuaj tua kab mob, uas tseem cuam tshuam txog cov khoom lag luam LED nce ntxiv hauv khw. Ultraviolet lub teeb tuaj yeem siv los tua cov huab cua, dej thiab qhov chaw ntawm ntau yam khoom. Lub koom haum thoob ntiaj teb ultraviolet (iuva) hais tias nws tuaj yeem pab txo qis kev pheej hmoo kis tus kab mob covid-19.Ultraviolet lub teeb tau muab faib ua ntau yam (Daim duab 1). UV-A los yog lub teeb dub yog nyob ntawm 315 txog 400 nm thiab siv rau hauv cov ntawv thov xws li kev ntsuas lub teeb, kev kho, kho duab, tshuaj tua kab thiab tanning txaj. Kev raug UV-A ntev ntev tuaj yeem ua rau tawv nqaij tanning thiab kev laus ntxov ntxov.Daim duab 1 ultraviolet lub teeb muab faib ua ntau yam.

UV-B nyob rau hauv lub wavelength ntau ntawm 280 ~ 315 nm yog txaus ntshai. Vim tias qhov ntev ntawm UV-B raug cuam tshuam rau qhov tshwm sim ntawm daim tawv nqaij mob qog noj ntshav, kev laus ntawm daim tawv nqaij thiab cov kab mob cataract, cov ntawv thov kev lag luam suav nrog kev saib xyuas thiab kev kho mob hauv cov tshuaj.Cov wavelength nyob rau hauv thaj tsam ntawm 200 ~ 280nm yog UV-C. Qhov UV band no tsis muaj dab tsi ua rau mob qog noj ntshav vim tias photons tsis nkag mus tob rau hauv daim tawv nqaij, tab sis raws li kev tshawb fawb iva, raug UV-C tuaj yeem ua rau tawv nqaij tsis xis nyob xws li kub hnyiab thiab ua rau lub qhov muag ntawm retina. UV-C photons tuaj yeem cuam tshuam nrog RNA thiab DNA molecules hauv cov kab mob kom ua kom lawv zoo. Mercury vapor teeb uas tuaj yeem tawm UV-C tau siv los tua kab mob rau ntau xyoo. Txawm li cas los xij, zoo li lwm yam teeb pom kev zoo, lawv tau hloov mus rau cov khoom siv LED teeb pom kev zoo.

Cov kws paub txog kev noj qab haus huv ntseeg tias hom tseem ceeb ntawm kev sib kis ntawm covid-19 yog los ntawm kev sib cuag nrog cov pa ua pa hauv huab cua lossis ntawm cov khoom. Tam sim no muaj LED raws li kev ua kom tsis muaj menyuam thiab cov khoom siv tshuaj tua kab mob yog siv rau kev tua kab mob saum npoo. Nrog rau kev nthuav dav ntawm cov khoom lag luam no, cov cuab yeej siv tshuaj tua kab mob siab tshaj plaws feem ntau yuav raug qhia. Cov khoom siv muaj muaj qhov zoo ntawm kev tsim nyog rau lwm hom LED teeb pom kev zoo: me me, kev sib koom ua ke yooj yim nrog rau lwm yam khoom siv xws li muaj cov sensors, thiab kev siv hluav taws xob tsawg. Txawm li cas los xij, cov khoom no feem ntau kim dua, thiab yuav muaj kev txwv ntau dua ntawm thaj tsam ntawm thaj chaw uas tuaj yeem ua tiav hauv lub sijhawm.

Thawj qhov ua kom pom tseeb ntawm kev hloov mus rau LEDs yog qhov txo qis hauv LED lub neej piv rau cov teeb mercury vapor uas twb muaj lawm. Txawm li cas los xij, qhov kev txhawj xeeb no yog los ntawm kev ntsuam xyuas kev ua haujlwm tas mus li hauv kev siv ib txwm siv xws li kaw lub tshuab lim dej, thiab tsis suav tias cov khoom siv tshuaj tua kab mob tuaj yeem (thiab qee zaum yuav tsum) siv tsis tu ncua. Zoo li tag nrho cov LEDs, UV-C LEDs tuaj yeem voj voog yuav luag tsis tas li yam tsis muaj kev cuam tshuam rau lub teeb pom kev zoo; Tsis tas li ntawd, mercury vapor teeb xav tau ob peb feeb ntawm preheating lub sij hawm kom ncav cuag lub siab tshaj plaws lub teeb tso zis, thiab cov khoom LED yuav luag ncav cuag tag nrho cov zis theem nyob rau hauv ib qho instant. Tsis tas li ntawd, tsis zoo li mercury vapor teeb, cov khoom siv coj los tsuas tuaj yeem muab lub wavelength xav tau rau qhov zoo tshaj plaws uas tsis muaj nkig lub zog nyob rau hauv daim ntawv ntawm invalid wavelengths.

Feem ntau hais lus, lwm qhov teeb meem ntawm sterilization teeb pom kev zoo yog qhov kev txheeb xyuas ntawm cov khoom muaj kev ruaj ntseg thiab kev ua haujlwm. Raws li Carl Bloomfield, tus thawj coj thoob ntiaj teb ntawm kev lag luam kev lag luam hauv Intertek lub lag luam hluav taws xob, lawv cov khoom lag luam ntsuam xyuas tsom mus rau qhov ci tsis pom kev, kev ua kom tsis muaj menyuam, kev ua raws li kev nyab xeeb, thiab siv tau EMC. Cov koom haum txhim kho cov qauv tau pib sim cov qauv, tab sis cov qauv tseem tsis tau muaj, yog li Intertek tso siab rau nws txoj kev lag luam thiab kev txawj ntse los tsim cov txheej txheem kev soj ntsuam rau cov khoom tshwj xeeb thiab lawv cov ntawv thov. Kev ua raws li kev nyab xeeb tuaj yeem yog qhov nyuaj tshwj xeeb vim tias nws nyob ntawm cov khoom siv thiab nws cov kev npaj siv, suav nrog hluav taws xob, hluav taws xob poob siab, kev pheej hmoo ntawm kev siv tshuab, kev phom sij, UV tso tawm thiab ozone emissions.

Ntxiv rau cov khoom siv tshuaj tua kab mob UV, muaj cov khoom lag luam tshiab hu ua "pom pom lub teeb tua kab mob (VLD)". Cov khoom siv no siv indigo (xiav ntshav) wavelengths emissions los ntawm LEDs, uas muaj kev nyab xeeb rau tib neeg lub cev kom raug rau lub sij hawm ntev, thiaj li mus txuas ntxiv tshem tawm cov kab mob rhiab heev rau cov wavelengths.VLD cov khoom feem ntau yog ntsia rau hauv ib qho chaw ua ib feem ntawm kev siv teeb pom kev ruaj khov, thiab qee zaum siv ua ke nrog cov teeb pom kev dawb rau cov teeb pom kev dav dav. Nws yog ib qho tsim nyog sau cia tias VLD tshuaj tua kab mob tsis zoo rau txhua tus kab mob thiab tsis zoo rau cov kab mob.