Lub teeb nrig tua ultraviolet muaj ob lub ntsiab emission cov kab: 254nm thiab 185nm. 254nm ultraviolet txoj sab ci tua cov kab mob los ntawm kev cuam tshuam cov DNA ntawm cov kab mob me me. 185nm ultraviolet rays tuaj yeem tig O2 hauv huab cua mus rau O3 (ozone). Ozone muaj cov nyhuv oxidizing zoo thiab muaj peev xwm tua tau cov kab mob. Kev hais tawm thiab kev rho tawm hauv kab ncaj ncaj muaj qhov tsis zoo ntawm qhov tuag thaum xaus.
Thaum lub sij hawm ua kom zoo ntawm quartz iav, yog tias qhov muaj peev xwm ntawm titanium (Ti) ntau ntxiv, cov duab hluav taws xob ultraviolet dhau los ntawm nws tuaj yeem txiav tawm qis dua 200nm, thiab tsis muaj qhov cuam tshuam rau qhov kev sib kis ntawm 254nm ultraviolet rays. Kev tswj xyuas qhov tsim nyog ntawm cov nyiaj ntawm titanium ntxiv tuaj yeem tswj tau qhov nyiaj ntau ntawm 185nm ultraviolet hluav taws xob. Raws li qhov tshwj xeeb no, peb hom hluav taws xob ultraviolet teeb pom kev zoo, xws li tsis muaj dej qes (tsis muaj huab cua), nws thiab nws qhov siab, nws tuaj yeem tsim ua.
