o Cov qhov ncauj qhov ntswg twg tiv thaiv tus kabmob tshiab tau?
Lub qhov ncauj qhov ntswg tau muab faib ua plaub pawg raws li lawv siv:
(1) daim ntaub npog ntsej muag zoo nkauj;
(2) daim npog kho mob (tiv thaiv lossis phais mob);
(3) cov qhov ncauj tiv thaiv txhua hnub (feem ntau yog siv los tiv thaiv taws, xws li N 95, KN 95, thiab lwm yam);
(4) lub tshuab nqus tsev plua plav, tshuab pa teeb ua lub tshuab nqus pa (ua pa, siv tshuaj tiv thaiv kev ua haujlwm).
Ntxiv nrog rau daim npog ntsej muag zoo nkauj, lwm qhov ncauj qhov ntswg muaj kev tiv thaiv zoo tiv thaiv tus kabmob tshiab.
qhov chaw: www..texfiberchina.com