As medical masks, disposable medical masks belong to the lowest level of medical masks. Comparing the three standards, medical protective mask > medical surgical mask > disposable medical mask. Compared with daily protective masks, disposable medical masks require higher bacterial filtration efficiency.
Let's take a look at the specific standard interpretation:
YY / T 0969-2013 is the pharmaceutical industry standard of the people's Republic of China. It was issued by the State Food and Drug Administration on October 21, 2013 and implemented since October 1, 2014.
The standard specifies the technical requirements, test methods, identification, operation instructions, packaging, transportation and storage of disposable medical masks (below single use medical mask). It is suitable for covering the mouth, nose and mandible of the user. It is used in the general medical environment to wear and block the exhalation or emission of pollutants from the mouth and nose.
Terminology of disposable medical masks
01、bacterial filtration efficiency;BFE
Under the specified flow rate, the percentage of suspended particles containing bacteria filtered by the mask material.
02 、flame retardation properties
The resistance of the mask under the specified area and flow rate is expressed by differential pressure. The unit is PA.