A Chinese face mask has five executive standards, one is called GB 2626-2019 or GB 2626-2006, and second standard is called GB/T32610-2016, all these standards are called technical specifications for daily protective masks, respiratory protection or self-absorption filter respirator against particulate matter, it only can be used for in daily life to filter particles with particle size less than or equal to 2.5 microns under air pollution environment, so it can't be used for fire protection, vapor, harmful gas, oxygen-deficient environment, underwater operation, hospital, medical, surgery and so on.
Third Standard is called YY/T0969-2013, the name is called medical face mask for one-time use. It can be used in the general medical environment to wear, blocking oral and nasal exhalation or exhalation of pollutants, but it should not be used in clinical invasive operation and special medical working environment.
Fourth Standard is called YY0469-2011, the name is called surgical mask for one-time use. It can be worn by clinical medical personnel in the process of invasive operation, and it has the effect of preventing blood infiltration and pathogen cargo, so the protective effect is better than disposable medical mask.
Fifth Standard is called GB19083-2010, the name is called Medical Protective Face Mask. It can be applied to the medical work environment, used to filter the particulate matter in the air, blocking droplets, blood, body fluids, secretions, etc. This type of mask not only has the basic requirements of surgical mask, but also can meet the filtration efficiency of non-oily filtered particulate matter greater than or equal to 95%. It is recommended to be worn by medical staff in fever clinic, isolation ward and confirmed patients when they are transferred.
