rossmax PF120 Series Peak Flow Meter Tus neeg siv phau ntawv
Kawm yuav ua li cas siv Rossmax PF120 Series Peak Flow Meter los ntsuas peak expiratory flow rate (PEFR) rau kev saib xyuas kev ua pa xws li mob hawb pob. Ua raws li cov lus qhia uas tau muab rau hauv phau ntawv neeg siv kom tau txais qhov tseeb. Khaws lub ntsuas kom huv thiab sab laj nrog koj tus kws kho mob rau kev taw qhia tus kheej. Nrhiav cov ntaub ntawv ntxiv ntawm Rossmax webqhov chaw.