Raws li qhov sib txawv wavelengths, ultraviolet rays tau muab faib ua ntus cheeb tsam 190-280nm, nruab nrab nthwv thaj tsam 280-320nm, thiab ntev nthwv thaj tsam 320-400nm. Ultraviolet rays nyob rau thaj tsam luv-nthwv dej muaj lub zog siab tshaj plaws, tab sis lawv raug thaiv thaum dhau los ntawm ozone txheej. Yog li, ultraviolet rays nyob rau nruab nrab-yoj thiab yoj ntev hauv cheeb tsam feem ntau ua rau tib neeg lub cev.
Lub zog UV tsis kam ntawm titanium dioxide yog vim nws qhov ntsuas ua kom zoo rov qab thiab lub siab xav tau. Nws lub peev xwm tiv thaiv ultraviolet thiab nws cov tshuab muaj feem xyuam rau nws qhov loj me: thaum lub particle loj, UV feem ntau thaiv los ntawm kev xav thiab tawg, thiab nws zoo rau ob qho nruab nrab thiab yoj ntev ultraviolet. Lub hnub tiv thaiv kev tiv thaiv yog kev npog yooj yim, uas yog kev tiv thaiv lub cev txhua hnub, thiab kev muaj peev xwm tiv thaiv lub hnub yog tsis muaj zog; raws li qhov loj qhov me me txo, lub teeb tuaj yeem hla qhov particle saum npoo ntawm titanium dioxide, thiab qhov cuam tshuam thiab tawg ntawm ultraviolet sab hauv cheeb tsam ntev ntev tsis pom tseeb, thiab qhov chaw tsom rau kev nqus ntawm ultraviolet rays hauv nthwv dej cheeb tsam yog pom tseeb dua Cov. Nws lub zog tiv thaiv lub hnub yog nqus cov duab hluav taws xob ultraviolet, feem ntau nyob hauv thaj tsam nruab nrab. Nws tuaj yeem pom tau tias lub hnub ci kev siv tshuab ntawm titanium dioxide rau nyias wavelengths ntawm ultraviolet rays txawv. Cov kab hluav taws xob ntev ntev ntev yog qhov thaiv los ntawm kev tawg, thiab lub nruab nrab ntev-ntev lub teeb duab ultraviolet rays tsuas yog nqus tau los ntawm kev nqus.
