Kev ntim khoom noj hlau ua lub luag haujlwm tseem ceeb hauv kev lag luam khoom noj niaj hnub. Nws qhov tseem ceeb tsis yog tsuas yog tiv thaiv thiab khaws cov zaub mov xwb, tab sis kuj muaj ntau yam, suav nrog kev nyab xeeb ntawm zaub mov, yooj yim, thiab kev tiv thaiv ib puag ncig.
Ua ntej, cov khoom ntim hlau muaj cov khoom thaiv zoo heev, tiv thaiv cov khoom noj los ntawm lwm yam. Cov hlau, tshwj xeeb tshaj yog txhuas thiab hlau, muaj cov roj av tshwj xeeb thiab lub teeb thaiv kev tiv thaiv, tiv thaiv kev nkag mus ntawm oxygen, noo noo, thiab kab mob, yog li ncua lub txee lub neej ntawm cov zaub mov. Piv txwv li, cov zaub mov hauv kaus poom ntim rau hauv cov hlau tuaj yeem khaws cia rau hauv chav tsev kub rau lub sijhawm ntev yam tsis muaj qhov lwj, ua rau lawv tseem ceeb heev rau kev thauj mus los thiab khaws cia ntev -. Tsis tas li ntawd, hlau ntim tau zoo thaiv cov kab hluav taws xob ultraviolet, tiv thaiv oxidation thiab tsw hloov pauv los ntawm lub teeb raug.
Qhov thib ob, hlau ntim khoom muaj txiaj ntsig zoo ntawm cov khoom noj khoom haus. Piv nrog rau cov hnab yas lossis ntawv ntim, cov hlau tsis tshua muaj kev cuam tshuam nrog cov khoom noj thiab tso tawm cov khoom tsis zoo, yog li ua kom muaj kev huv thiab kev nyab xeeb ntawm cov zaub mov. Cov ntawv ntim hlau kuj tseem muaj lub foob muaj zog, tiv thaiv kev nkag mus ntawm cov kab mob thiab cov kab mob, txo qhov kev pheej hmoo ntawm cov khoom noj uas lwj. Tsis tas li ntawd, kev rov ua dua tshiab thiab ua haujlwm ntev ntawm cov ntim hlau ua rau nws nyiam cov khoom siv rau kev tiv thaiv ib puag ncig. Txawm hais tias hlau ntau lawm yuav tsum tau siv lub zog siab, nws cov xwm txheej uas tuaj yeem rov ua dua tshiab tsis tu ncua txo nws txoj kev cuam tshuam rau ib puag ncig ntev -.
Kev ntim khoom hlau kuj tseem ua lub luag haujlwm tseem ceeb hauv kev yooj yim thiab kev lag luam. Cov ntawv ntim khoom xws li cov kaus poom hlau, cov ntawv hlau, thiab cov hau hlau tsis yog tsuas yog yooj yim rau qhib thiab kaw, tab sis kuj muaj kev sib tw zoo heev thiab kev thauj mus los ruaj khov, ua rau lawv tsim nyog rau ntau hom zaub mov, nrog rau cov dej haus, cov kaus poom, cov khoom noj, thiab khoom noj txom ncauj. Tsis tas li ntawd, cov ntawv ntim hlau muaj cov qauv tsim tau yooj yim, tso cai rau kev tsim cov duab zoo nkauj los ntawm kev luam ntawv thiab txheej thev naus laus zis, txhim kho cov khoom lag luam.
Hauv cov ntsiab lus, cov ntim khoom siv hlau ua lub luag haujlwm tsis tuaj yeem hloov pauv hauv kev tiv thaiv cov zaub mov, txuas ntxiv lub neej txee, ua kom cov zaub mov muaj kev nyab xeeb, thiab txhim kho cov khoom muaj nqis. Nrog rau kev txhim kho thev naus laus zis thiab kev paub txog ib puag ncig, kev ntim khoom hlau yuav txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev lag luam khoom noj khoom haus, muab cov neeg siv khoom noj khoom haus zoo dua thiab yooj yim dua.