The first version of GB19083 was urgently formulated during the SARS outbreak in 2003, and the old version of the standard was revised in 2010. GB19083 has clear requirements for the filtration efficiency and tightness of masks, which is similar to GB2626-2006; medical protective masks are also surgical masks, so exhalation valves are not allowed to prevent the droplets generated by the wearer from passing through. The exhalation valve discharges the polluted surgical wound; many medical protective masks use the blue-green color shown on the surface, which is just a habit in the medical industry, and the material on the outer surface of the mask will block the splash of bodily fluids. Particulate masks are usually not considered.
The above is the protective performance of protective masks, I hope to help you! The protective mask has the protective performance of surgical masks and particulate protective masks at the same time. It is used in hospitals and can filter particulate matter in the air and block droplets, blood, body fluids and secretions. Protective masks also belong to Class II medical care. Device products must comply with the mandatory standard GB19083-2010. The earlier version of GB19083 was urgently formulated during the SARS outbreak in 2003, and the old version of the standard was revised in 2010.
GB19083 has clear requirements for the filtration efficiency and tightness of masks, which is similar to GB2626-2006; medical protective masks are also surgical masks, so exhalation valves are not allowed to prevent the droplets generated by the wearer from passing through. The exhalation valve discharges the polluted surgical wound; many medical protective masks use the blue-green color shown on the surface, which is just a habit in the medical industry, and the material on the outer surface of the mask will block the splash of bodily fluids. In this regard, non-medical masks Particulate masks are usually not considered.
