Video: Koj puas xav tau UPF khaub ncaws?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Khaub ncaws nrog a UPF qhov ntsuas tsis yog tsim nyog rau ntau tus neeg. Tab sis rau cov uas xav tau tiag tiag tiv thaiv tshav ntuj, nws muab ib theem ntawm qhov tseeb. Koj tej zaum yuav tau pom ib tug sib txawv nyob rau hauv khaub ncaws khw muag khoom: cov ris tsho uas sau nrog UPF (ultraviolet tiv thaiv factor) tooj. Khaub ncaws nrog cov txiaj ntsig ntxiv no tuaj yeem raug nqi kim.
Ib yam li ntawd, UPF cov khaub ncaws puas ua haujlwm tiag tiag?
Qee lub tuam txhab muag khaub ncaws uas muaj kev tiv thaiv built-in los ntawm UV rays. INSIDER nug ob tus kws kho mob tawv nqaij yog tias lawv ua haujlwm tiag tiag . Ob leeg tau hais tias lawv yog cov kiv cua loj ntawm kev tiv thaiv UV khaub ncaws . Qhov no feem ntau yog vim nws txoj kev yooj yim dua hnav khaub ncaws tshaj nws yog siv tshuaj pleev thaiv hnub kom zoo.
Kuj Paub, puas yog tag nrho cov khaub ncaws muaj UPF? Thaum tshuab txhua yam khaub ncaws tuaj yeem ua tau muab qee qhov kev tiv thaiv tshav ntuj los ntawm kev npog daim tawv nqaij, kev tiv thaiv tshav ntuj khaub ncaws ” nqa a UPF (tiv thaiv kab mob ultraviolet) ntsuas uas qhia meej npaum li cas UV tau raug thaiv los ntawm cov ntaub tshwj xeeb, nws piav qhia.
Hauv qhov no, Puas yog UPF ntxuav tawm ntawm cov khaub ncaws?
A UPF kev ntsuas ntawm 50, qhov kev ntsuas siab tshaj plaws tau txais, tsuas yog tso cai 2 feem pua ntawm cov muaj hluav taws xob ultraviolet kom nkag mus rau a tsoos tsho . Kev tiv thaiv zoo li no tsis yog ntxuav tawm , tab sis zoo li nrog cov weaves tshwj xeeb, cov ntaub fibers tuaj yeem hloov pauv raws sijhawm, ua rau lawv tsis tshua muaj txiaj ntsig ntawm kev tshuaj xyuas UV teeb.
Dab tsi ua rau khaub ncaws UPF?
Ultraviolet Protection Factor ( UPF ) qhia ntau npaum li cas UV hluav taws xob (ob leeg UVB thiab UVA) ib daim ntaub tso cai rau koj mus cuag koj cov tawv nqaij. Piv txwv li, a UPF 50 cov ntaub thaiv 98 feem pua ntawm lub hnub ci thiab tso cai rau ob feem pua (1/50th) nkag mus, yog li txo koj qhov kev pheej hmoo kis tau zoo.
Pom zoo:
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