UVA rays UVA rays Qhov zoo tshaj plaws wavelengths rau tshuaj tua kab mob yog ze rau 260 nm. Mercury vapor teeb tej zaum yuav raug categorized li tsawg-siab (xws li amalgam) los yog nruab nrab-siab teeb. Lub teeb hluav taws xob qis UV muaj kev ua haujlwm siab (approx. 35% UV-C) tab sis qis zog, feem ntau 1 W / cm zog ceev (lub zog ib chav tsev ntawm qhov ntev). https://en.wikipedia.org › Ultraviolet_germicidal_irradiation
Ultraviolet germicidal irradiation - Wikipedia
tuaj yeem nkag mus rau koj cov tawv nqaij ntau dua thiab ua rau koj cov tawv nqaij ua kom muaj hnub nyoog ntxov. Kwv yees li 95 feem pua ntawm UV rays uas ncav cuag hauv av yog UVA rays. Lub lwm 5 feem pua ntawm UV rays yog UVB. Lawv muaj lub zog ntau dua li UVA rays, thiab feem ntau ua rau cov khaubncaws sab nraud povtseg ntawm koj cov tawv nqaij, ua rau tshav ntuj.
UVA thiab UVB qhov sib txawv yog dab tsi?
Ultraviolet A (UVA) muaj lub wavelength ntev dua, thiab cuam tshuam nrog kev laus ntawm daim tawv nqaij. Ultraviolet B (UVB) muaj qhov luv dua wavelength thiab cuam tshuam nrog tawv nqaij.
3 hom rays yog dab tsi?
UV hluav taws xob tau faib ua peb hom: ultraviolet A (UVA), ultraviolet B (UVB), thiab ultraviolet C (UVC). Cov pab pawg no yog ua raws li qhov ntsuas ntawm lawv qhov wavelength, uas ntsuas hauv nanometers (nm=0.000000001 meters lossis 1 × 10-9 meters).
UVA ua li cas rau koj cov tawv nqaij?
UVA rays muaj lub zog tsawg tshaj plaws ntawm UV rays. Cov rays no tuaj yeem ua rau cov tawv nqaij mus rau hnub nyoog thiab tuaj yeemua rau qee qhov kev puas tsuaj rau cov hlwb 'DNA. UVA rays feem ntau yog txuas rau lub sijhawm ntev ntawm daim tawv nqaij xws li wrinkles, tab sis lawv kuj xav tias ua lub luag haujlwm hauv qee cov qog nqaij hlav ntawm daim tawv nqaij.
Puas yog UVA thiab UVB rays tuaj yeem thaiv 100% los ntawm tshuaj pleev thaiv hnub?
Tsis muaj tshuaj pleev thaiv hnub thaiv UV hluav taws xob 100%. Tab sis lawv cia koj nyob nraum zoov ntev dua ua ntej koj cov tawv nqaij pib redden. Kev siv tshuaj pleev thaiv hnub tsis tau txhais hais tias koj tuaj yeem nyob hauv lub hnub tsis txwv lub sijhawm. Kev puas tsuaj rau koj cov tawv nqaij hlwb tseem tshwm sim.
