According to the Beijing Municipal Health Commission’s report on May 4, from 15:00 on May 3 to 15:00 on the 4th, 52 new cases of local new coronary pneumonia virus infection were reported in Beijing. Among them, 617 infected persons had been sampled from 328 infected persons’ homes. Why is it important to wear N95/KN95 masks? What are the precautions for wearing N95/KN95 masks? What are the details that the general public cannot ignore when wearing masks? The reporter interviewed Professor Jin Xiangyu, deputy director of the Industrial Textile Engineering Center of the Ministry of Education, director of the Department of Nonwoven Materials and Engineering of Donghua University, and Cui Can, deputy director of the Infection Management and Disease Prevention and Control Department of Beijing You’an Hospital affiliated to Capital Medical University. Pay attention to these details and avoid “ineffective wearing of masks”. First, distinguish the inside and outside of the mask, from top to bottom. Generally, the inside and outside of the mask can be judged by the color depth of the mask, the front and back of the printed font, and the direction of the crease. Generally, the dark color, the printed font are positive, the side of the crease downward is the outside, and one end of the metal strip/sponge strip is the mask. above. N95/KN95 masks are generally foldable or arched, and it is easy to distinguish the front and back. The second is to adjust the nose clip of the mask. Many people use the thumb and index finger of one hand to adjust the nose clip. The problem with this approach is that .
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