Kev kho mob phais tiv thaiv daim npog qhov ncauj

Qhov ncauj qhov ntswg tsim nyog rau kev phais mob, vim hais tias cov kab mob lom xws li ntshav tuaj yeem txaws thaum lub sijhawm phais. Txhawm rau tiv thaiv cov qauv no los ntawm kev sib tsoo mus rau tus kws kho mob lub ntsej muag thiab tiv thaiv cov kab mob ntawm tus kws kho mob lub ntsej muag kom tsis txhob poob mus rau qhov chaw phais mob thaum lub sijhawm phais, Cov Kws phais yuav tsum tau hnav lub ntsej muag phais uas ua tau raws li tus qauv. Hom npog ntsej muag no yuav muaj cov lus "Kev Kho Mob Qhov Ncauj Kho Mob" ntawm lub hnab ntim khoom thiab yuav tsum ua tau raws li "Technical Requirements for Medical Surgical Masks" YY-0469-2011 tus qauv.