What are the classification (surgical masks Next)

by:HongYu Apparel     2020-05-07
The previous classification problem we tells the story of surgical masks, then today to elaborate on what are the classification (surgical masks Next) Second, according to the performance characteristics and applicable scope to 1, medical protective mask ( 1) Filtration efficiency: in air flow ( 85±2) Under the condition of L/min, median diameter (dynamics of air 0. 24±0. 6) Microns of sodium chloride aerosol filtration efficiency of no less than 95%, which conform to the N95 ( Or FFP2) And above level. ( 2) Inspiratory resistance: under the condition of the flow, inspiratory resistance less than 343. 2Pa( 35mmH2O) 。 2, medical surgical masks ( 1) Filtration efficiency: in air flow ( 30±2) Under the condition of L/min, median diameter (dynamics of air 0. 24±0. 6) Mu m sodium chloride aerosol filtration efficiency of no less than 30%; ( 2) Bacteria filtration efficiency: under prescribed conditions, the average particle diameter ( 3±0. 3) Mu m of staphylococcus aureus aerosol filtration efficiency of no less than 95%; ( 3) Breathing resistance: under the condition of the efficiency of filtering flow, inspiratory resistance less than 49 pa, expiratory resistance is not more than 29. 4Pa。 3, the common surgical masks in conformity with the relevant registration product standards ( YZB) , the general lack of particles and bacteria filtration efficiency requirements, or filtration efficiency requirements for particles and bacteria under medical surgical masks and medical protective mask. Above is a rough classification of surgical masks, through the introduction of the above we can find that still more abundant types of surgical masks, each has his strong point. Consumer is when the choose and buy should start from their own actual situation, choose suitable for their own, can effective bacteria dust intrusion protection masks again at the same time. Want to know more detailed information, can be found at the shandong Hongyu Apparel website http://www. jiandun。 Cc to query!
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