During the epidemic now more fire is kn95 and N95 masks, kn95 is our national standard, N95 is the United States standard, the two are only different in the test standard, but the technical requirements are basically the same, for the aerosol filtration in the air can reach 95%. In the case of the epidemic out then it is necessary to wear a mask at all times, but now the type of masks on the market is also very much, so in the choice of masks, be sure to recognize the mask on the word Zhende, is able to meet the needs of daily life and work, and some ordinary masks, then, there is no implementation of the standards can only be used for dust, the protective capacity is also relatively weak. Some medical masks are generally used by medical personnel or relevant testing personnel.
Now wear masks is to take scientific and reasonable wear norms of use, if it is in some ventilated places can not wear masks, but once you go to a crowded place or closed public **** place, you must wear a good mask, if the epidemic is a high incidence of the area, then you need to use a disposable medical masks, the protective capacity will be better. Normal use of the mask in the mask deformation or wet can be replaced in a timely manner, do not need to deliberately deal with, and confirmed that the patient wore the mask should be strictly in accordance with the relevant process of medical waste disposal.
Nowadays, most of the masks are ear-mounted, and when wearing the masks, we should pay attention to the fact that it is not the thicker the mask, the better, and we want to judge the performance of the masks, and the specific measurements need to be detected by the professional equipments. When wearing a mask, should be as much as possible to let the pocket and face to fit, so that the protective effect will be better, but also to avoid some pollutants from the edge of the mask into the mouth and nose, so when wearing a mask must be the bridge of the nose at the place of the pressure to adjust the length of the pocket, so that the mask fit the face.
Lastly, when wearing a mask, you should choose a mask according to the actual situation you are facing, and some of the better grade masks have a better protective effect, but if you wear it for a long time, it may cause the respiratory load to increase.