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What is the difference between N95 and ordinary medical masks?

by:Copper Plus     2021-06-05
What is the difference between N95 and ordinary medical masks? Let’s take a look today:   disposable ordinary medical masks:   disposable ordinary medical masks, suitable for health protection in ordinary medical environments where there is no risk of body fluids and splashing. It is suitable for general diagnosis and treatment activities, and for general low flux and low concentration of pathogenic bacteria polluted environment.   Disposable medical masks can meet many of your requirements, but for ordinary people, you can achieve certain precautions by wearing disposable medical masks correctly when you go out.   Features: Compared with medical surgical masks and medical protective masks, the filtration efficiency of particles and bacteria is relatively low, but the filtration efficiency is higher than that of ordinary cotton spun masks in the society. Disposable medical surgical masks:    disposable surgical masks, which are more suitable for preventing blood, body fluids and splashes during invasive operations. They are mainly used for the basic protection of medical personnel and related personnel in medical institutions. General doctors Medical staff in surgery and infection wards need to wear this kind of copper mask. Main features: It is used to prevent blood, body fluids and splashes during invasive operations, and to protect respiratory diseases transmitted by droplets. It can prevent infectious agents (bacteria, viruses and other pathogenic microorganisms) with a diameter of less than 5 microns Wait).  N95 masks: certified by NIOSH in the United States, the filtration efficiency of non-oily particles is ≥95%.   KN95 copper mask: It meets our China GB 2626 mandatory standard, and the filtration efficiency of non-oily particles is ≥95%. But what we need to know is that the core standards of industrial masks and consumer product masks are actually the same. According to the GB2626 standard KN95, KN90 is actually sufficient. The medical staff will have body fluid splashing and the environmental concentration is very high. It needs to be strict.   But it should be noted that although some celebrity masks of the same style are more beautiful, they do not care about the protective effect. The above-mentioned 3M technicians told a reporter from 21st Century Business Herald.   Regarding the frequency of replacement of masks, the above-mentioned technicians said that they would start to replace them if they were dirty, and it would take three to five days, or if the medical staff went to the contaminated area, they would need to be replaced.   In fact, regarding the frequency of replacement, at present, foreign countries, including WHO, have not had any clear conclusions on the wearing time of N95 masks, and my country has not made relevant regulations on the use time of masks. Relevant researchers have done relevant research on the protection efficiency of N95 medical protective masks and the wearing time. According to the relevant results, data shows that the filtration efficiency of N95 masks can still be maintained above 95% when worn for 2 days, and the respiratory resistance does not change. Large; the filtration efficiency is reduced to about 94.7% after wearing for 3 days.   The above is the editor of ordinary medical masks to show you what is the difference between N95 and ordinary medical masks. I hope to help you! 371
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