Mask executive standard is GB19083-2010.
GB19083-2010 is for the implementation of the standard for masks used in medical equipment, in line with the requirements of the epidemic prevention of the standard code of the five masks is the implementation of the standard for medical protective masks is YY0469-2011, the implementation of the standard for single-use medical masks is YY/T0969-2013, daily protective masks executive standard is GB/T32610-2016, children's masks executive standard is GB/T38880-2020.
The masks under the GB19083-2010 standard can effectively block aerosols, viruses, bacteria, dust, bodily fluids blood, etc., and is a medical level of protective equipment. According to GB19083-2010, medical protective masks are equipped with three filtration efficiency levels, respectively 95%, 99% and 99.97%, all of which are only applicable to non-oily particulate matter, which is in line with the hospital environment protection of particulate matter does not have the characteristics of oily substances.
Mask suitability test
Particulate protective masks and medical protective masks in the authoritative testing organizations for certification testing process, the mask leakage rate is tested, but due to the limited number of testers, the test qualified does not guarantee that each user will have a good fit with the mask, so in the selection of masks Therefore, when selecting a mask, the user needs to do a one-on-one "fit" test with the mask.
The fit test has two methods, qualitative and quantitative, the qualitative method relies on the mask wearer, the taste of the particulate reagent for testing to determine whether the mask's fit is qualified, easy to grasp and operate, and is applicable to all types of masks. Quantitative methods use more complex equipment, the operator's knowledge and testing conditions require higher, the test results are quantitative, but also to check the suitability of the full range of masks.
Reference: Baidu Encyclopedia-Professional protective masks